Q: What are the prime factors of the number 112,920?

 A: 2, 3, 5, 941

Why are those the prime factors of the number 112,920?

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 112,920

112,920
Factor Arrows
256,460
Factor Arrows
228,230
Factor Arrows
214,115
Factor Arrows
34,705
Factor Arrows
5941

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, 3, 5, 941

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 941 = 112,920

This can also be written as 23 x 31 x 51 x 9411 = 112,920

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


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