Q: What are the prime factors of the number 5,372,730?

 A: 2, 3, 5, 11, 67

Why are those the prime factors of the number 5,372,730?

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 5,372,730

5,372,730
Factor Arrows
22,686,365
Factor Arrows
3895,455
Factor Arrows
3298,485
Factor Arrows
399,495
Factor Arrows
333,165
Factor Arrows
311,055
Factor Arrows
33,685
Factor Arrows
5737
Factor Arrows
1167

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, 11, 67

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 11 x 67 = 5,372,730

This can also be written as 21 x 36 x 51 x 111 x 671 = 5,372,730

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


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