Q: What are the prime factors of the number 478,874,880?

 A: 2, 3, 5, 11, 3779

Why are those the prime factors of the number 478,874,880?

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 478,874,880

478,874,880
Factor Arrows
2239,437,440
Factor Arrows
2119,718,720
Factor Arrows
259,859,360
Factor Arrows
229,929,680
Factor Arrows
214,964,840
Factor Arrows
27,482,420
Factor Arrows
23,741,210
Factor Arrows
21,870,605
Factor Arrows
3623,535
Factor Arrows
3207,845
Factor Arrows
541,569
Factor Arrows
113,779

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, 11, 3779

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 2 x 2 x 3 x 3 x 5 x 11 x 3,779 = 478,874,880

This can also be written as 28 x 32 x 51 x 111 x 3,7791 = 478,874,880

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


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