Q: What are the prime factors of the number 457,760?

 A: 2, 5, 2861

Why are those the prime factors of the number 457,760?

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 457,760

457,760
Factor Arrows
2228,880
Factor Arrows
2114,440
Factor Arrows
257,220
Factor Arrows
228,610
Factor Arrows
214,305
Factor Arrows
52,861

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, 5, 2861

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 2,861 = 457,760

This can also be written as 25 x 51 x 2,8611 = 457,760

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


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