Q: What are the prime factors of the number 136,316,775?

 A: 3, 5, 7, 757

Why are those the prime factors of the number 136,316,775?

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 136,316,775

136,316,775
Factor Arrows
345,438,925
Factor Arrows
59,087,785
Factor Arrows
51,817,557
Factor Arrows
7259,651
Factor Arrows
737,093
Factor Arrows
75,299
Factor Arrows
7757

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:

3, 5, 7, 757

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 7 x 7 x 7 x 7 x 757 = 136,316,775

This can also be written as 31 x 52 x 74 x 7571 = 136,316,775

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


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