Q: What are the prime factors of the number 131,500,545?

 A: 3, 5, 11, 23, 34651

Why are those the prime factors of the number 131,500,545?

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 131,500,545

131,500,545
Factor Arrows
343,833,515
Factor Arrows
58,766,703
Factor Arrows
11796,973
Factor Arrows
2334,651

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:

3, 5, 11, 23, 34651

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 23 x 34,651 = 131,500,545

This can also be written as 31 x 51 x 111 x 231 x 34,6511 = 131,500,545

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


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