Q: What are the prime factors of the number 318,128?

 A: 2, 59, 337

Why are those the prime factors of the number 318,128?

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 318,128

318,128
Factor Arrows
2159,064
Factor Arrows
279,532
Factor Arrows
239,766
Factor Arrows
219,883
Factor Arrows
59337

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, 59, 337

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 59 x 337 = 318,128

This can also be written as 24 x 591 x 3371 = 318,128

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


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