Primes / Is 9 prime?

Is 9 a Prime Number?

No9 = 3^2

9 is NOT prime: 3 × 3 = 9. That makes 3 a genuine divisor of 9 beyond 1 and 9 itself. Fully broken down, 9 = 3^2, for 3 divisors total. 9 sits between primes 7 and 11, 2 below and 2 above. 9: 3 divide 9 evenly, checked against 2-12. 9 is odd, digit sum 9 for 9, digital root 9 for 9. 9 has 8 primes within 10 of 9.