Primes / Is 41 prime?

Is 41 a Prime Number?

Yes

41 is prime: for 41, testing every prime up to √41 ≈ 6.4 (namely 2, 3, 5) finds no divisor. 41 sits between primes 37 and 43, 4 below and 2 above. 41 shares no factor with 2-12; 41's divisors start beyond that range. 41 is odd, digit sum 5 for 41, digital root 5 for 41. 41 has 5 primes within 10 of 41.