Caution: numbers that feel prime may be divisible by 3
Caution: numbers that feel prime may be divisible by 3. For example, 51 and 57.
Conversely, numbers that feel divisible by 3 may be prime. For example, 61, 89 and 97.
Nominations for least prime-feeling numbers that actually are prime: 89 and 101.
Nominations for best prime number: 2 and 101.
Both have digits that sum to 2.
Yes, I was trying to count sheep last night.
November 30th, 2007 at 7:58 pm
_A Prime, primes and half a prime_
I was thinking this morning about 34 (nearly my birthday) and how it feels like it should be prime! It is midway between the two nearest primes tho, and two times a prime.
December 3rd, 2007 at 1:45 pm
Two times a prime does often feel special.