Q: What are the prime factors of the number 896,272?

 A: 2, 13, 31, 139

Why are those the prime factors of the number 896,272?

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 896,272

896,272
Factor Arrows
2448,136
Factor Arrows
2224,068
Factor Arrows
2112,034
Factor Arrows
256,017
Factor Arrows
134,309
Factor Arrows
31139

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, 13, 31, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 31 x 139 = 896,272

This can also be written as 24 x 131 x 311 x 1391 = 896,272

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


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