Primes / Is 100 prime?

Is 100 a Prime Number?

No100 = 2^2 x 5^2

100 is NOT prime: 2 × 50 = 100. That makes 2 a genuine divisor of 100 beyond 1 and 100 itself. Fully broken down, 100 = 2^2 × 5^2, for 9 divisors total. 100 sits between primes 97 and 101, 3 below and 1 above. 100: 2, 4, 5, 10 divide 100 evenly, checked against 2-12. 100 is even, digit sum 1 for 100, digital root 1 for 100. 100 has 5 primes within 10 of 100.