Q: What are the prime factors of the number 55,452,215?

 A: 5, 7, 13, 17, 67, 107

Why are those the prime factors of the number 55,452,215?

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 55,452,215

55,452,215
Factor Arrows
511,090,443
Factor Arrows
71,584,349
Factor Arrows
13121,873
Factor Arrows
177,169
Factor Arrows
67107

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:

5, 7, 13, 17, 67, 107

We can check our work by multiplying all of the prime factors together: 5 x 7 x 13 x 17 x 67 x 107 = 55,452,215

This can also be written as 51 x 71 x 131 x 171 x 671 x 1071 = 55,452,215

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


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