Q: What are the prime factors of the number 481,260,724?

 A: 2, 7, 109, 137, 1151

Why are those the prime factors of the number 481,260,724?

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 481,260,724

481,260,724
Factor Arrows
2240,630,362
Factor Arrows
2120,315,181
Factor Arrows
717,187,883
Factor Arrows
109157,687
Factor Arrows
1371,151

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, 109, 137, 1151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 109 x 137 x 1,151 = 481,260,724

This can also be written as 22 x 71 x 1091 x 1371 x 1,1511 = 481,260,724

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


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