Primes / Is 357 prime?
Is 357 a Prime Number?
No357 = 3 x 7 x 17
357 is NOT prime: 3 × 119 = 357. That makes 3 a genuine divisor of 357 beyond 1 and 357 itself. Fully broken down, 357 = 3 × 7 × 17, for 8 divisors total. 357 sits between primes 353 and 359, 4 below and 2 above. 357: 3, 7 divide 357 evenly, checked against 2-12. 357 is odd, digit sum 15 for 357, digital root 6 for 357. 357 has 5 primes within 10 of 357.