Q: What are the prime factors of the number 100,423,532?

 A: 2, 11, 397, 5749

Why are those the prime factors of the number 100,423,532?

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 100,423,532

100,423,532
Factor Arrows
250,211,766
Factor Arrows
225,105,883
Factor Arrows
112,282,353
Factor Arrows
3975,749

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, 397, 5749

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 397 x 5,749 = 100,423,532

This can also be written as 22 x 111 x 3971 x 5,7491 = 100,423,532

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


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