Primes / Is 72 prime?

Is 72 a Prime Number?

No72 = 2^3 x 3^2

72 is NOT prime: 2 × 36 = 72. That makes 2 a genuine divisor of 72 beyond 1 and 72 itself. Fully broken down, 72 = 2^3 × 3^2, for 12 divisors total. 72 sits between primes 71 and 73, 1 below and 1 above. 72: 2, 3, 4, 6, 8, 9, 12 divide 72 evenly, checked against 2-12. 72 is even, digit sum 9 for 72, digital root 9 for 72. 72 has 4 primes within 10 of 72.