Q: What are the prime factors of the number 154,431,525?

 A: 3, 5, 19, 29, 37, 101

Why are those the prime factors of the number 154,431,525?

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 154,431,525

154,431,525
Factor Arrows
351,477,175
Factor Arrows
510,295,435
Factor Arrows
52,059,087
Factor Arrows
19108,373
Factor Arrows
293,737
Factor Arrows
37101

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:

3, 5, 19, 29, 37, 101

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 19 x 29 x 37 x 101 = 154,431,525

This can also be written as 31 x 52 x 191 x 291 x 371 x 1011 = 154,431,525

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


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