Q: What are the prime factors of the number 8,349,220?

 A: 2, 5, 11, 37951

Why are those the prime factors of the number 8,349,220?

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 8,349,220

8,349,220
Factor Arrows
24,174,610
Factor Arrows
22,087,305
Factor Arrows
5417,461
Factor Arrows
1137,951

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, 5, 11, 37951

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 37,951 = 8,349,220

This can also be written as 22 x 51 x 111 x 37,9511 = 8,349,220

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


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