Primes / Is 463 prime?

Is 463 a Prime Number?

Yes

463 is prime: for 463, testing every prime up to √463 ≈ 21.5 (namely 2, 3, 5, 7, 11, 13, 17, 19) finds no divisor. 463 sits between primes 461 and 467, 2 below and 4 above. 463 shares no factor with 2-12; 463's divisors start beyond that range. 463 is odd, digit sum 13 for 463, digital root 4 for 463. 463 has 4 primes within 10 of 463.