Q: What are the prime factors of the number 537,152?

 A: 2, 7, 11, 109

Why are those the prime factors of the number 537,152?

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 537,152

537,152
Factor Arrows
2268,576
Factor Arrows
2134,288
Factor Arrows
267,144
Factor Arrows
233,572
Factor Arrows
216,786
Factor Arrows
28,393
Factor Arrows
71,199
Factor Arrows
11109

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, 11, 109

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 7 x 11 x 109 = 537,152

This can also be written as 26 x 71 x 111 x 1091 = 537,152

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


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