Q: What are the prime factors of the number 111,312,502?

 A: 2, 7, 23, 37, 9343

Why are those the prime factors of the number 111,312,502?

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 111,312,502

111,312,502
Factor Arrows
255,656,251
Factor Arrows
77,950,893
Factor Arrows
23345,691
Factor Arrows
379,343

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:

2, 7, 23, 37, 9343

We can check our work by multiplying all of the prime factors together: 2 x 7 x 23 x 37 x 9,343 = 111,312,502

This can also be written as 21 x 71 x 231 x 371 x 9,3431 = 111,312,502

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


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