Q: What are the prime factors of the number 481,380,736?

 A: 2, 97, 137, 283

Why are those the prime factors of the number 481,380,736?

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 481,380,736

481,380,736
Factor Arrows
2240,690,368
Factor Arrows
2120,345,184
Factor Arrows
260,172,592
Factor Arrows
230,086,296
Factor Arrows
215,043,148
Factor Arrows
27,521,574
Factor Arrows
23,760,787
Factor Arrows
9738,771
Factor Arrows
137283

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, 97, 137, 283

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 97 x 137 x 283 = 481,380,736

This can also be written as 27 x 971 x 1371 x 2831 = 481,380,736

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


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