Q: What are the prime factors of the number 23,791,482?

 A: 2, 3, 11, 13, 79

Why are those the prime factors of the number 23,791,482?

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 23,791,482

23,791,482
Factor Arrows
211,895,741
Factor Arrows
33,965,247
Factor Arrows
31,321,749
Factor Arrows
3440,583
Factor Arrows
3146,861
Factor Arrows
1113,351
Factor Arrows
131,027
Factor Arrows
1379

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, 11, 13, 79

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 11 x 13 x 13 x 79 = 23,791,482

This can also be written as 21 x 34 x 111 x 132 x 791 = 23,791,482

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


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