Q: What are the prime factors of the number 150,724,665?

 A: 3, 5, 7, 13, 12269

Why are those the prime factors of the number 150,724,665?

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 150,724,665

150,724,665
Factor Arrows
350,241,555
Factor Arrows
316,747,185
Factor Arrows
35,582,395
Factor Arrows
51,116,479
Factor Arrows
7159,497
Factor Arrows
1312,269

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, 13, 12269

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 7 x 13 x 12,269 = 150,724,665

This can also be written as 33 x 51 x 71 x 131 x 12,2691 = 150,724,665

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


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