Primes / Is 529 prime?
Is 529 a Prime Number?
No529 = 23^2
529 is NOT prime: 23 × 23 = 529. That makes 23 a genuine divisor of 529 beyond 1 and 529 itself. Fully broken down, 529 = 23^2, for 3 divisors total. 529 sits between primes 523 and 541, 6 below and 12 above. 529 shares no factor with 2-12; 529's divisors start beyond that range. 529 is odd, digit sum 16 for 529, digital root 7 for 529. 529 has 2 primes within 10 of 529.