Q: What are the prime factors of the number 151,011,561?

 A: 3, 17, 107, 27673

Why are those the prime factors of the number 151,011,561?

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 151,011,561

151,011,561
Factor Arrows
350,337,187
Factor Arrows
172,961,011
Factor Arrows
10727,673

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, 17, 107, 27673

We can check our work by multiplying all of the prime factors together: 3 x 17 x 107 x 27,673 = 151,011,561

This can also be written as 31 x 171 x 1071 x 27,6731 = 151,011,561

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


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