To find what prime numbers are factors of 72, start with any two factor pairs of 72 and keep factoring the composite numbers until all the factors are prime. For example:
2 x 36
2 x 2 x 18
2 x 2 x 2 x 9
2 x 2 x 2 x 3 x 3
Chat with our AI personalities
The factors of 72 that are prime numbers are 2, 3, and 5. Prime numbers are numbers greater than 1 that can only be divided by 1 and themselves without leaving a remainder. In the case of 72, it can be broken down into the prime factors 2^3 * 3^2, where 2 and 3 are the prime factors.
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71 that's as far up as it goes because 72 is a composite number not a prime number!
there are many (infinite) ways but just one is 72=2*(31+5)
there are 12 prime numbers between 21 and 72 23, 29, 31, 37, 41, 43, 47, 49, 53, 59, 61, 67
98 is an even number, thus it is divisible by 2; 98/2 = 49. 49 is simply 72. Since both 2 and 7 are prime numbers, the prime factorization of 98 is 2 X 72.