Q: What are the prime factors of the number 151,665,024?

 A: 2, 3, 7, 17, 3319

Why are those the prime factors of the number 151,665,024?

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 151,665,024

151,665,024
Factor Arrows
275,832,512
Factor Arrows
237,916,256
Factor Arrows
218,958,128
Factor Arrows
29,479,064
Factor Arrows
24,739,532
Factor Arrows
22,369,766
Factor Arrows
21,184,883
Factor Arrows
3394,961
Factor Arrows
756,423
Factor Arrows
173,319

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, 17, 3319

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 2 x 3 x 7 x 17 x 3,319 = 151,665,024

This can also be written as 27 x 31 x 71 x 171 x 3,3191 = 151,665,024

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


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