[Poll} What's your favorite prime number?

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gretchyn
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07 Nov 2012, 1:33 pm

Krabo wrote:

Is 1 a prime by definition?

No. It is excluded in the definition (prime must be >1).

Anna94980506
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07 Nov 2012, 1:45 pm

Mine's 7

Krabo
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07 Nov 2012, 1:53 pm

gretchyn wrote:

Krabo wrote:

Is 1 a prime by definition?

No. It is excluded in the definition (prime must be >1).

Yes, you're right. Indeed, if it was a prime, then for example, 10 = 5 × 2 × 1 × 1 × 1 × … an infinite sequence of primes.
And still the number 1 is not divisible by any other integer. There's something demonic about this little number.

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07 Nov 2012, 3:40 pm

2. I like even numbers.

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07 Nov 2012, 5:17 pm

Krabo
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08 Nov 2012, 10:15 am

There's something strange about the prime 2, too. Being the only even prime it makes it possible that all even numbers can be expressed as a product of primes. The number 2 is indivisible but it is in a way cuttable in half. The subset of even primes is an infinitely small fraction of the set of all primes. This is confusing and I don't like the idea.

gretchyn
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08 Nov 2012, 11:11 am

Krabo wrote:

That's why I like it--it's the odd duck out. :lol:

Even numbers usually creep me out for some reason, but 2 is different...it's friendly somehow.

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08 Nov 2012, 12:37 pm

gretchyn wrote:

2, because it's the only even prime number, although generally I prefer odd numbers.

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AnActualRailfan
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18 Nov 2012, 9:45 pm

I like 3. For some reason, things always seem more orderly to me when they're divided into threes.

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18 Nov 2012, 9:58 pm

11

because I was born on the 11th, and I'm weird like that.

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18 Nov 2012, 10:00 pm

5 definately 5

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18 Nov 2012, 10:08 pm

Krabo wrote:

That's actually very cool.

But it's still 13 for me.

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18 Nov 2012, 10:09 pm

naturalplastic wrote:

CockneyRebel wrote:

1965

Not a prime- in the mathamatical sense.

Its divisible by five.

Oh I forgot.

Its the year that the Kinks formed.

So that makes it prime.

Never mind.

The Kinks formed earlier than that. 1963, I think (as the Ravens, they became The Kinks in '64).

Ryvandur
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19 Nov 2012, 2:01 am

2. It's also a power of 2, which is what really makes it important to me.

madnak
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19 Nov 2012, 7:49 am

My favorite is all the known prime numbers multiplied together, plus one.

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19 Nov 2012, 8:33 am

23 I suppose

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