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Count to a million (in prime numbers!)

actuallylike

Let's get nerdy people, same rules apply as the count to a million thread but in prime numbers only. In case you don't know, a prime number is divisible only by itself and 1 (ie 7 or 13, etc.).

There's plenty of prime number calclators on the web
example http://www.easycalculation.com/prime-number.php
if stuck but try it in your head first

I'll start by skipping 1 and 2 and onto

3

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Comments

15

Ha!

walshb wrote: »

15

Ha!

Stupid Boy !!!!!!!!!!!!!!

17

43:cool:

47

39 isn't prime, it is divisible by 3

Sixty-one is a cuban prime of the form p = (x3 − y3) / (x − y),x = y + 1.

Sixty-one is the largest know prime that divides the product of the next two primes plus 1.

Sixty-one is the sum of two squares
it is a centered square number,
a centered hexagonal number and
a centered decagonal number.

it is a Pillai prime.
It is also a Keith number,

colrow

Queen-Mise

71

I think, havent checked online

blindman

Richard

colrow wrote: »

49

49 isn't prime. It is 7x7.

Also, OP, 1 isn't prime either.

79 is, however.

magicianz

83!

blindman

magicianz

blindman wrote: »

81

81 is 9x9! Check and mate ;-)

drunkmonkey

(83,89) Sexy Primes if i'm not mistaken:)

Capt'n Midnight

magicianz wrote: »

83!

Factorial 83 is not prime.

97

http://primes.utm.edu/lists/small/millions/

Matt Holck

You asked me once, what was in Room 101. I told you that you knew the answer already. Everyone knows it. The thing that is in Room 101 is the worst thing in the world.

http://en.wikipedia.org/wiki/Room_101

Queen-Mise

101