Q: What are the prime factors of the number 520,475,040?

 A: 2, 3, 5, 361441

Why are those the prime factors of the number 520,475,040?

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 520,475,040

520,475,040
Factor Arrows
2260,237,520
Factor Arrows
2130,118,760
Factor Arrows
265,059,380
Factor Arrows
232,529,690
Factor Arrows
216,264,845
Factor Arrows
35,421,615
Factor Arrows
31,807,205
Factor Arrows
5361,441

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, 3, 5, 361441

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 361,441 = 520,475,040

This can also be written as 25 x 32 x 51 x 361,4411 = 520,475,040

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


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