Primes / Is 487 prime?

Is 487 a Prime Number?

Yes

487 is prime: for 487, testing every prime up to √487 ≈ 22.1 (namely 2, 3, 5, 7, 11, 13, 17, 19) finds no divisor. 487 sits between primes 479 and 491, 8 below and 4 above. 487 shares no factor with 2-12; 487's divisors start beyond that range. 487 is odd, digit sum 19 for 487, digital root 1 for 487. 487 has 3 primes within 10 of 487.