Primes / Is 233 prime?

Is 233 a Prime Number?

Yes

233 is prime: for 233, testing every prime up to √233 ≈ 15.3 (namely 2, 3, 5, 7, 11, 13) finds no divisor. 233 sits between primes 229 and 239, 4 below and 6 above. 233 shares no factor with 2-12; 233's divisors start beyond that range. 233 is odd, digit sum 8 for 233, digital root 8 for 233. 233 has 6 primes within 10 of 233.