## Count to a Million

For all your silly time-killing forum games.

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Sciscitor
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### Re: Count to a Million

92001

Flumble wrote:Indeed. And the nifty trick to find out if a number is divisible by 3 is to sum the digits and check if that is divisible by 3. (and if that's still hard, sum those digits and check if that is divisible by 3 etc.)
The trick is even more nifty: You do not need to sum up all the digits. You can ignore all 3s, 6s, 9s and 0s. And: If it is divisible after the second summary it is not only divisible by 3 but by 9 too!

Spoiler:
Last edited by Sciscitor on Sun Apr 28, 2019 5:03 pm UTC, edited 2 times in total.
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flicky1991
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### Re: Count to a Million

92002

Frog!
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Sciscitor
Posts: 504
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### Re: Count to a Million

92003

Ape hair of noughts.
TFDA Senior OTT Analyst (Resources, The Database of OTC and OTT Related Art)
To all Blitzers (Maugrim, micdi, Purplepants77 et al): Have fun and enjoy your journey!
Holmes, Sherlock wrote:"It's elementary, my dear Watson!"1
1 Holmes actually never said this.

flicky1991
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Location: London

### Re: Count to a Million

92004

Still ape.
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Flumble
Yes Man
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### Re: Count to a Million

92005

Sciscitor wrote:The trick is even more nifty: You do not need to sum up all the digits. You can ignore all 3s, 6s, 9s and 0s.

True, and you can do the summing modulo 3 the whole way through, like for 92005
9 ≡ 0 (mod 3) →
2 ≡ 2, 0+2 = 2 ≡ 2 (mod 3) →
0 ≡ 0, 2+0 = 2 ≡ 2 →
0 ≡ 0, 2+0 = 2 ≡ 2 →
5 ≡ 2, 2+2 = 4 ≡ 1 →
1 is not divisible by 3

Sciscitor wrote:And: If it is divisible after the second summary it is not only divisible by 3 but by 9 too!

Alas, a trivial case: 3 is divisible by 3 but not 9, no matter how many times you sum the digits. A less trivial case: 39 ⇒ 12 ⇒ 3, two layers of divisibility but it's only divisible by 3.

The other way around does work: if the digits are divisible by 9, the number is divisible by both 9 and 3.

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### Re: Count to a Million

92006
Oh!!
Googely Eyes!
We have Googely Eyes!

Noughts?
They are, just, noughts?
Spoiler:
Not knots...Just, not.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

Flumble
Yes Man
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### Re: Count to a Million

92007

Indeed googely eyes, addams, a whole decade long. And then once a decade. And then they're gone for another 900.

Sciscitor
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Location: Austria

### Re: Count to a Million

92008

Flumble wrote:
Sciscitor wrote:And: If it is divisible after the second summary it is not only divisible by 3 but by 9 too!

Alas, a trivial case: 3 is divisible by 3 but not 9, no matter how many times you sum the digits. A less trivial case: 39 ⇒ 12 ⇒ 3, two layers of divisibility but it's only divisible by 3.

You are right, I got something mixed up: It is only divisible by nine if the cross sum is divisible by nine.
TFDA Senior OTT Analyst (Resources, The Database of OTC and OTT Related Art)
To all Blitzers (Maugrim, micdi, Purplepants77 et al): Have fun and enjoy your journey!
Holmes, Sherlock wrote:"It's elementary, my dear Watson!"1
1 Holmes actually never said this.

Posts: 10268
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Location: Oregon Coast: 97444

### Re: Count to a Million

92009
Frog's Hair...
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

flicky1991
Like in Cinderella?
Posts: 778
Joined: Fri Feb 11, 2011 3:36 pm UTC
Location: London

### Re: Count to a Million

92010

Ape.
any pronouns
----
Forum Games Discord
(tell me if link doesn't work)

Posts: 10268
Joined: Sun Sep 12, 2010 4:44 am UTC
Location: Oregon Coast: 97444

### Re: Count to a Million

92011
Snake's Eyes.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

flicky1991
Like in Cinderella?
Posts: 778
Joined: Fri Feb 11, 2011 3:36 pm UTC
Location: London

### Re: Count to a Million

92012

Ape of twos.
any pronouns
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Posts: 10268
Joined: Sun Sep 12, 2010 4:44 am UTC
Location: Oregon Coast: 97444

### Re: Count to a Million

92013
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

flicky1991
Like in Cinderella?
Posts: 778
Joined: Fri Feb 11, 2011 3:36 pm UTC
Location: London

### Re: Count to a Million

92014
any pronouns
----
Forum Games Discord
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Flumble
Yes Man
Posts: 2249
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### Re: Count to a Million

92015

I can't wait for 99***. There are so many Boring numbers now.

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Location: Oregon Coast: 97444

### Re: Count to a Million

92016
Yes, Flumble, it's true.
Help us get to the Fun part Fast!
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

svenman
Posts: 661
Joined: Fri Jun 14, 2013 2:09 pm UTC
Location: 680 km NNE of the Château d'If

### Re: Count to a Million

92017

Here, I'll put in my part...
Apart from Forum Games, mostly active on the One True Thread.
If you need help understanding what's going on there, the xkcd Time Wiki may be useful.

Addams thanks all of us who helped. Her life is much better now.

Randallspeed to all blitzers on the One True Thread!

Flumble
Yes Man
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### Re: Count to a Million

92018

Wrapped straight.

Posts: 10268
Joined: Sun Sep 12, 2010 4:44 am UTC
Location: Oregon Coast: 97444

### Re: Count to a Million

92019
Ape...

Phew...I'm glad we didn't lose you two.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

svenman
Posts: 661
Joined: Fri Jun 14, 2013 2:09 pm UTC
Location: 680 km NNE of the Château d'If

### Re: Count to a Million

92020

Hair of frog.
Apart from Forum Games, mostly active on the One True Thread.
If you need help understanding what's going on there, the xkcd Time Wiki may be useful.

Addams thanks all of us who helped. Her life is much better now.

Randallspeed to all blitzers on the One True Thread!

Posts: 10268
Joined: Sun Sep 12, 2010 4:44 am UTC
Location: Oregon Coast: 97444

### Re: Count to a Million

92021
Ape Hair and a little Snake Wink.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

Sciscitor
Posts: 504
Joined: Sat Apr 13, 2013 6:20 am UTC
Location: Austria

### Re: Count to a Million

92022

Three of a feather of twos.
TFDA Senior OTT Analyst (Resources, The Database of OTC and OTT Related Art)
To all Blitzers (Maugrim, micdi, Purplepants77 et al): Have fun and enjoy your journey!
Holmes, Sherlock wrote:"It's elementary, my dear Watson!"1
1 Holmes actually never said this.

ObsessoMom
Nespresso Bomb
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### Re: Count to a Million

92023

flicky1991
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### Re: Count to a Million

92024
any pronouns
----
Forum Games Discord
(tell me if link doesn't work)

Posts: 10268
Joined: Sun Sep 12, 2010 4:44 am UTC
Location: Oregon Coast: 97444

### Re: Count to a Million

92026
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

flicky1991
Like in Cinderella?
Posts: 778
Joined: Fri Feb 11, 2011 3:36 pm UTC
Location: London

### Re: Count to a Million

92026

You were slightly off, addams.
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Sciscitor
Posts: 504
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Location: Austria

### Re: Count to a Million

92027

Ape hair of twos. Palindromic bookends soon.
TFDA Senior OTT Analyst (Resources, The Database of OTC and OTT Related Art)
To all Blitzers (Maugrim, micdi, Purplepants77 et al): Have fun and enjoy your journey!
Holmes, Sherlock wrote:"It's elementary, my dear Watson!"1
1 Holmes actually never said this.

Flumble
Yes Man
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Joined: Sun Aug 05, 2012 9:35 pm UTC

### Re: Count to a Million

92028

I, for one, won't get them.

flicky1991
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### Re: Count to a Million

92029

Froggie palindrome!
any pronouns
----
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(tell me if link doesn't work)

Flumble
Yes Man
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### Re: Count to a Million

92030

Ap air.

Sciscitor
Posts: 504
Joined: Sat Apr 13, 2013 6:20 am UTC
Location: Austria

### Re: Count to a Million

92031

Wrapped straight.
TFDA Senior OTT Analyst (Resources, The Database of OTC and OTT Related Art)
To all Blitzers (Maugrim, micdi, Purplepants77 et al): Have fun and enjoy your journey!
Holmes, Sherlock wrote:"It's elementary, my dear Watson!"1
1 Holmes actually never said this.

Flumble
Yes Man
Posts: 2249
Joined: Sun Aug 05, 2012 9:35 pm UTC

### Re: Count to a Million

92032

'Notherp air.

Posts: 10268
Joined: Sun Sep 12, 2010 4:44 am UTC
Location: Oregon Coast: 97444

### Re: Count to a Million

92033
Ape Hair.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

svenman
Posts: 661
Joined: Fri Jun 14, 2013 2:09 pm UTC
Location: 680 km NNE of the Château d'If

### Re: Count to a Million

92034
Apart from Forum Games, mostly active on the One True Thread.
If you need help understanding what's going on there, the xkcd Time Wiki may be useful.

Addams thanks all of us who helped. Her life is much better now.

Randallspeed to all blitzers on the One True Thread!

flicky1991
Like in Cinderella?
Posts: 778
Joined: Fri Feb 11, 2011 3:36 pm UTC
Location: London

### Re: Count to a Million

92035
any pronouns
----
Forum Games Discord
(tell me if link doesn't work)

ObsessoMom
Nespresso Bomb
Posts: 918
Joined: Sun Sep 29, 2013 5:28 pm UTC

### Re: Count to a Million

92036

The next palindrome will be my own zip code!

I won't call dibs, but I hope whoever gets it gives a particularly special woohoo.

flicky1991
Like in Cinderella?
Posts: 778
Joined: Fri Feb 11, 2011 3:36 pm UTC
Location: London

### Re: Count to a Million

92037

Hopefully you've not summoned random forum posters to your neighbourhood with that statement.
any pronouns
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(tell me if link doesn't work)

ObsessoMom
Nespresso Bomb
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### Re: Count to a Million

92038

Considering that I live in the zip code that produced Saturday's synagogue shooter, I think I have bigger worries.

(And also the 2012 Aurora shooter. Lovely neighborhood.)

Okay, that got depressingly dark, fast. Sorry.

flicky1991
Like in Cinderella?
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Location: London

### Re: Count to a Million

92039

Oof.

Bookends.
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Flumble
Yes Man
Posts: 2249
Joined: Sun Aug 05, 2012 9:35 pm UTC

92040

ape