Primes / Is 229 prime?

Is 229 a Prime Number?

Yes

229 is prime: for 229, testing every prime up to √229 ≈ 15.1 (namely 2, 3, 5, 7, 11, 13) finds no divisor. 229 sits between primes 227 and 233, 2 below and 4 above. 229 shares no factor with 2-12; 229's divisors start beyond that range. 229 is odd, digit sum 13 for 229, digital root 4 for 229. 229 has 5 primes within 10 of 229.