Q: What are the prime factors of the number 7,292,992?

 A: 2, 7, 73, 223

Why are those the prime factors of the number 7,292,992?

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 7,292,992

7,292,992
Factor Arrows
23,646,496
Factor Arrows
21,823,248
Factor Arrows
2911,624
Factor Arrows
2455,812
Factor Arrows
2227,906
Factor Arrows
2113,953
Factor Arrows
716,279
Factor Arrows
73223

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, 7, 73, 223

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 7 x 73 x 223 = 7,292,992

This can also be written as 26 x 71 x 731 x 2231 = 7,292,992

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


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