Q: What are the prime factors of the number 120,312,313?

 A: 11, 19, 61, 9437

Why are those the prime factors of the number 120,312,313?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 120,312,313

120,312,313
Factor Arrows
1110,937,483
Factor Arrows
19575,657
Factor Arrows
619,437

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

11, 19, 61, 9437

We can check our work by multiplying all of the prime factors together: 11 x 19 x 61 x 9,437 = 120,312,313

This can also be written as 111 x 191 x 611 x 9,4371 = 120,312,313

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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