Q: What are the prime factors of the number 353,528?

 A: 2, 7, 59, 107

Why are those the prime factors of the number 353,528?

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 353,528

353,528
Factor Arrows
2176,764
Factor Arrows
288,382
Factor Arrows
244,191
Factor Arrows
76,313
Factor Arrows
59107

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, 7, 59, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 59 x 107 = 353,528

This can also be written as 23 x 71 x 591 x 1071 = 353,528

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


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