Q: What are the prime factors of the number 7,751,280?

 A: 2, 3, 5, 32297

Why are those the prime factors of the number 7,751,280?

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 7,751,280

7,751,280
Factor Arrows
23,875,640
Factor Arrows
21,937,820
Factor Arrows
2968,910
Factor Arrows
2484,455
Factor Arrows
3161,485
Factor Arrows
532,297

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, 5, 32297

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 32,297 = 7,751,280

This can also be written as 24 x 31 x 51 x 32,2971 = 7,751,280

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


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