Q: What are the prime factors of the number 69,160?

 A: 2, 5, 7, 13, 19

Why are those the prime factors of the number 69,160?

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 69,160

69,160
Factor Arrows
234,580
Factor Arrows
217,290
Factor Arrows
28,645
Factor Arrows
51,729
Factor Arrows
7247
Factor Arrows
1319

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, 7, 13, 19

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 13 x 19 = 69,160

This can also be written as 23 x 51 x 71 x 131 x 191 = 69,160

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


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