A Prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 2 is prime, 72 is composite.
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To find the prime factorization of a number, start with any factor pair of the number and keep factoring the composite factors until all the factors are prime. 72 2 x 36 2 x 2 x 18 2 x 2 x 2 x 9 2 x 2 x 2 x 3 x 3 There are two different prime numbers that are in the prime factorization of 72: 2 and 3. 89 is a prime number whose digits have a product of 72.
the factors of 72 are : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. Thus, 72 is a composite number. prime factorization of 72: 2 x 2 x 2 x 3 x 3
72 = 2 x 2 x 2 x 3 x 3
2 x 2 x 2 x 3 x 3 = 72
72