Q: What are the prime factors of the number 45,372,726?

 A: 2, 3, 7, 7349

Why are those the prime factors of the number 45,372,726?

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 45,372,726

45,372,726
Factor Arrows
222,686,363
Factor Arrows
37,562,121
Factor Arrows
32,520,707
Factor Arrows
7360,101
Factor Arrows
751,443
Factor Arrows
77,349

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, 7, 7349

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 7 x 7,349 = 45,372,726

This can also be written as 21 x 32 x 73 x 7,3491 = 45,372,726

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


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