Q: What are the prime factors of the number 912,576?

 A: 2, 3, 7, 97

Why are those the prime factors of the number 912,576?

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 912,576

912,576
Factor Arrows
2456,288
Factor Arrows
2228,144
Factor Arrows
2114,072
Factor Arrows
257,036
Factor Arrows
228,518
Factor Arrows
214,259
Factor Arrows
34,753
Factor Arrows
7679
Factor Arrows
797

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, 97

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 3 x 7 x 7 x 97 = 912,576

This can also be written as 26 x 31 x 72 x 971 = 912,576

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


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