Monday, January 08, 2007

a prime age

I had high hopes that 2007 would be a prime number. Alas, it is not. The next prime year is 2011. I thought you should know.


Gaurav said...

Clearly so.

2007 sums up to 9 (= 2+0+0+7) which is divisible by 3. Hence 2007 is also divisible by 3, and thus is not prime.

Verification : 2007 / 3 = 669
Gaah! Almost had 666 there, which as you may be aware, could have provided a good reason for the unseasonably warm weather. Alas, 'tis not meant to be...

Laura said...

That justification, if I may say, is completely ridiculous. I will proceed with a counterexample.

2011. This is undoubtedly a prime number. If I apply your method:
2011 sums up to 4. 4 is divisible by 2, and thus 2011 should be divisible by 2. Or not.

However, I am prepared to admit that your justification may have been a joke. Ha. Haha.

So long, and thanks for all the fish.