Q: What are the prime factors of the number 147,131,460?

 A: 2, 3, 5, 7, 23, 5077

Why are those the prime factors of the number 147,131,460?

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 147,131,460

147,131,460
Factor Arrows
273,565,730
Factor Arrows
236,782,865
Factor Arrows
312,260,955
Factor Arrows
34,086,985
Factor Arrows
5817,397
Factor Arrows
7116,771
Factor Arrows
235,077

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, 3, 5, 7, 23, 5077

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 7 x 23 x 5,077 = 147,131,460

This can also be written as 22 x 32 x 51 x 71 x 231 x 5,0771 = 147,131,460

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


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