Q: What are the prime factors of the number 137,760,064?

 A: 2, 13, 23, 313

Why are those the prime factors of the number 137,760,064?

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 137,760,064

137,760,064
Factor Arrows
268,880,032
Factor Arrows
234,440,016
Factor Arrows
217,220,008
Factor Arrows
28,610,004
Factor Arrows
24,305,002
Factor Arrows
22,152,501
Factor Arrows
13165,577
Factor Arrows
237,199
Factor Arrows
23313

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, 13, 23, 313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 13 x 23 x 23 x 313 = 137,760,064

This can also be written as 26 x 131 x 232 x 3131 = 137,760,064

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


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