Q: What are the prime factors of the number 145,070,624?

 A: 2, 19, 269, 887

Why are those the prime factors of the number 145,070,624?

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 145,070,624

145,070,624
Factor Arrows
272,535,312
Factor Arrows
236,267,656
Factor Arrows
218,133,828
Factor Arrows
29,066,914
Factor Arrows
24,533,457
Factor Arrows
19238,603
Factor Arrows
269887

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, 19, 269, 887

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 269 x 887 = 145,070,624

This can also be written as 25 x 191 x 2691 x 8871 = 145,070,624

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


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