Q: What are the prime factors of the number 147,817,772?

 A: 2, 103, 499, 719

Why are those the prime factors of the number 147,817,772?

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 147,817,772

147,817,772
Factor Arrows
273,908,886
Factor Arrows
236,954,443
Factor Arrows
103358,781
Factor Arrows
499719

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, 103, 499, 719

We can check our work by multiplying all of the prime factors together: 2 x 2 x 103 x 499 x 719 = 147,817,772

This can also be written as 22 x 1031 x 4991 x 7191 = 147,817,772

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


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