Q: What are the prime factors of the number 144,870,520?

 A: 2, 5, 113, 32051

Why are those the prime factors of the number 144,870,520?

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 144,870,520

144,870,520
Factor Arrows
272,435,260
Factor Arrows
236,217,630
Factor Arrows
218,108,815
Factor Arrows
53,621,763
Factor Arrows
11332,051

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, 5, 113, 32051

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 113 x 32,051 = 144,870,520

This can also be written as 23 x 51 x 1131 x 32,0511 = 144,870,520

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


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