Q: What are the prime factors of the number 520,350,144?

 A: 2, 3, 17, 159421

Why are those the prime factors of the number 520,350,144?

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 520,350,144

520,350,144
Factor Arrows
2260,175,072
Factor Arrows
2130,087,536
Factor Arrows
265,043,768
Factor Arrows
232,521,884
Factor Arrows
216,260,942
Factor Arrows
28,130,471
Factor Arrows
32,710,157
Factor Arrows
17159,421

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, 17, 159421

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 3 x 17 x 159,421 = 520,350,144

This can also be written as 26 x 31 x 171 x 159,4211 = 520,350,144

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


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