Q: What are the prime factors of the number 151,257,813?

 A: 3, 7, 37, 53, 3673

Why are those the prime factors of the number 151,257,813?

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 151,257,813

151,257,813
Factor Arrows
350,419,271
Factor Arrows
77,202,753
Factor Arrows
37194,669
Factor Arrows
533,673

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, 7, 37, 53, 3673

We can check our work by multiplying all of the prime factors together: 3 x 7 x 37 x 53 x 3,673 = 151,257,813

This can also be written as 31 x 71 x 371 x 531 x 3,6731 = 151,257,813

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


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