Q: What are the prime factors of the number 151,663,360?

 A: 2, 5, 47, 2521

Why are those the prime factors of the number 151,663,360?

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 151,663,360

151,663,360
Factor Arrows
275,831,680
Factor Arrows
237,915,840
Factor Arrows
218,957,920
Factor Arrows
29,478,960
Factor Arrows
24,739,480
Factor Arrows
22,369,740
Factor Arrows
21,184,870
Factor Arrows
2592,435
Factor Arrows
5118,487
Factor Arrows
472,521

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, 47, 2521

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 2 x 5 x 47 x 2,521 = 151,663,360

This can also be written as 28 x 51 x 471 x 2,5211 = 151,663,360

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


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