Primes / Is 231 prime?

Is 231 a Prime Number?

No231 = 3 x 7 x 11

231 is NOT prime: 3 × 77 = 231. That makes 3 a genuine divisor of 231 beyond 1 and 231 itself. Fully broken down, 231 = 3 × 7 × 11, for 8 divisors total. 231 sits between primes 229 and 233, 2 below and 2 above. 231: 3, 7, 11 divide 231 evenly, checked against 2-12. 231 is odd, digit sum 6 for 231, digital root 6 for 231. 231 has 6 primes within 10 of 231.