Q: What are the prime factors of the number 146,811,632?

 A: 2, 11, 19, 43, 1021

Why are those the prime factors of the number 146,811,632?

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 146,811,632

146,811,632
Factor Arrows
273,405,816
Factor Arrows
236,702,908
Factor Arrows
218,351,454
Factor Arrows
29,175,727
Factor Arrows
11834,157
Factor Arrows
1943,903
Factor Arrows
431,021

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, 11, 19, 43, 1021

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 19 x 43 x 1,021 = 146,811,632

This can also be written as 24 x 111 x 191 x 431 x 1,0211 = 146,811,632

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


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