Q: What are the prime factors of the number 5,292,720?

 A: 2, 3, 5, 7351

Why are those the prime factors of the number 5,292,720?

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 5,292,720

5,292,720
Factor Arrows
22,646,360
Factor Arrows
21,323,180
Factor Arrows
2661,590
Factor Arrows
2330,795
Factor Arrows
3110,265
Factor Arrows
336,755
Factor Arrows
57,351

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, 7351

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 7,351 = 5,292,720

This can also be written as 24 x 32 x 51 x 7,3511 = 5,292,720

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


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