Q: What are the prime factors of the number 520,192?

 A: 2, 127

Why are those the prime factors of the number 520,192?

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 520,192

520,192
Factor Arrows
2260,096
Factor Arrows
2130,048
Factor Arrows
265,024
Factor Arrows
232,512
Factor Arrows
216,256
Factor Arrows
28,128
Factor Arrows
24,064
Factor Arrows
22,032
Factor Arrows
21,016
Factor Arrows
2508
Factor Arrows
2254
Factor Arrows
2127

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, 127

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 2 x 2 x 2 x 2 x 127 = 520,192

This can also be written as 212 x 1271 = 520,192

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


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