Primes / Is 227 prime?

Is 227 a Prime Number?

Yes

227 is prime: for 227, testing every prime up to √227 ≈ 15.1 (namely 2, 3, 5, 7, 11, 13) finds no divisor. 227 sits between primes 223 and 229, 4 below and 2 above. 227 shares no factor with 2-12; 227's divisors start beyond that range. 227 is odd, digit sum 11 for 227, digital root 2 for 227. 227 has 4 primes within 10 of 227.