Q: What are the prime factors of the number 55,113,534?

 A: 2, 3, 7, 53, 131

Why are those the prime factors of the number 55,113,534?

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 55,113,534

55,113,534
Factor Arrows
227,556,767
Factor Arrows
39,185,589
Factor Arrows
33,061,863
Factor Arrows
31,020,621
Factor Arrows
3340,207
Factor Arrows
748,601
Factor Arrows
76,943
Factor Arrows
53131

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, 53, 131

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 7 x 7 x 53 x 131 = 55,113,534

This can also be written as 21 x 34 x 72 x 531 x 1311 = 55,113,534

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


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