Q: What are the prime factors of the number 154,045,632?

 A: 2, 3, 13, 61717

Why are those the prime factors of the number 154,045,632?

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 154,045,632

154,045,632
Factor Arrows
277,022,816
Factor Arrows
238,511,408
Factor Arrows
219,255,704
Factor Arrows
29,627,852
Factor Arrows
24,813,926
Factor Arrows
22,406,963
Factor Arrows
3802,321
Factor Arrows
1361,717

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, 13, 61717

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 3 x 13 x 61,717 = 154,045,632

This can also be written as 26 x 31 x 131 x 61,7171 = 154,045,632

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


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