Question
is 2311 a prime or composite number?
Answers
Reiny
On my calculator I just tried for about 2 minutes to divide 2311 by primes < 49 (since 49^2 > 2311 , there is not need to go higher)
Actually the first few were pretty obvious, so I started with 7 , then
11,13,17,19,23,29,31,37,41,43,47
none divided exactly so, 2311 is prime
Actually the first few were pretty obvious, so I started with 7 , then
11,13,17,19,23,29,31,37,41,43,47
none divided exactly so, 2311 is prime