Q: What are the prime factors of the number 7,319,760?

 A: 2, 3, 5, 7, 4357

Why are those the prime factors of the number 7,319,760?

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 7,319,760

7,319,760
Factor Arrows
23,659,880
Factor Arrows
21,829,940
Factor Arrows
2914,970
Factor Arrows
2457,485
Factor Arrows
3152,495
Factor Arrows
530,499
Factor Arrows
74,357

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, 4357

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 7 x 4,357 = 7,319,760

This can also be written as 24 x 31 x 51 x 71 x 4,3571 = 7,319,760

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


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