Primes / Is 37 prime?

Is 37 a Prime Number?

Yes

37 is prime: for 37, testing every prime up to √37 ≈ 6.1 (namely 2, 3, 5) finds no divisor. 37 sits between primes 31 and 41, 6 below and 4 above. 37 shares no factor with 2-12; 37's divisors start beyond that range. 37 is odd, digit sum 10 for 37, digital root 1 for 37. 37 has 6 primes within 10 of 37.