Q: What are the prime factors of the number 479,776?

 A: 2, 11, 29, 47

Why are those the prime factors of the number 479,776?

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 479,776

479,776
Factor Arrows
2239,888
Factor Arrows
2119,944
Factor Arrows
259,972
Factor Arrows
229,986
Factor Arrows
214,993
Factor Arrows
111,363
Factor Arrows
2947

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, 11, 29, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 29 x 47 = 479,776

This can also be written as 25 x 111 x 291 x 471 = 479,776

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


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