Friday, September 18, 2009

1117

1117 is a prime number.

1117 has a representation as a sum of two squares: 1117 = 212 + 262.

1117 is the hypotenuse of a primitive Pythagorean triple: 11172 = 2352 + 10922.

1117 is the smallest four-digit unholey prime: Such primes do not have holes in their digits.

1117 is the smallest four-digit prime comprised of two two-digit primes.


"One Thousand One Hundred Seventeen" is the smallest number whose English name is spelled with exactly thirty letters.

Source:
Number Gossip

2 comments:

Mr. Mealor said...

Wouldn't 1111 be the smallest four-digit prime to consist of two two-digit primes? I know I'm being picky, but the description doesn't specify two different two-digit primes.

Great site! I just found it today.

Jacob said...

1111 isn't a prime...