Primes / Is 97 prime?

Is 97 a Prime Number?

Yes

97 is prime: for 97, testing every prime up to √97 ≈ 9.8 (namely 2, 3, 5, 7) finds no divisor. 97 sits between primes 89 and 101, 8 below and 4 above. 97 shares no factor with 2-12; 97's divisors start beyond that range. 97 is odd, digit sum 16 for 97, digital root 7 for 97. 97 has 5 primes within 10 of 97.