Q: What are the prime factors of the number 147,034,020?

 A: 2, 3, 5, 7, 17, 20593

Why are those the prime factors of the number 147,034,020?

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 147,034,020

147,034,020
Factor Arrows
273,517,010
Factor Arrows
236,758,505
Factor Arrows
312,252,835
Factor Arrows
52,450,567
Factor Arrows
7350,081
Factor Arrows
1720,593

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, 17, 20593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 17 x 20,593 = 147,034,020

This can also be written as 22 x 31 x 51 x 71 x 171 x 20,5931 = 147,034,020

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


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