Q: What are the prime factors of the number 537,856?

 A: 2, 11, 191

Why are those the prime factors of the number 537,856?

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 537,856

537,856
Factor Arrows
2268,928
Factor Arrows
2134,464
Factor Arrows
267,232
Factor Arrows
233,616
Factor Arrows
216,808
Factor Arrows
28,404
Factor Arrows
24,202
Factor Arrows
22,101
Factor Arrows
11191

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, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 11 x 191 = 537,856

This can also be written as 28 x 111 x 1911 = 537,856

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


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