Q: What are the prime factors of the number 8,772,960?

 A: 2, 3, 5, 7, 373

Why are those the prime factors of the number 8,772,960?

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 8,772,960

8,772,960
Factor Arrows
24,386,480
Factor Arrows
22,193,240
Factor Arrows
21,096,620
Factor Arrows
2548,310
Factor Arrows
2274,155
Factor Arrows
391,385
Factor Arrows
518,277
Factor Arrows
72,611
Factor Arrows
7373

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, 7, 373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 7 x 373 = 8,772,960

This can also be written as 25 x 31 x 51 x 72 x 3731 = 8,772,960

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


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