Q: What are the prime factors of the number 36,158,528?

 A: 2, 7, 43, 1877

Why are those the prime factors of the number 36,158,528?

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 36,158,528

36,158,528
Factor Arrows
218,079,264
Factor Arrows
29,039,632
Factor Arrows
24,519,816
Factor Arrows
22,259,908
Factor Arrows
21,129,954
Factor Arrows
2564,977
Factor Arrows
780,711
Factor Arrows
431,877

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, 7, 43, 1877

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 7 x 43 x 1,877 = 36,158,528

This can also be written as 26 x 71 x 431 x 1,8771 = 36,158,528

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


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