Q: What are the prime factors of the number 23,220,147?

 A: 3, 17, 19, 31, 773

Why are those the prime factors of the number 23,220,147?

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 23,220,147

23,220,147
Factor Arrows
37,740,049
Factor Arrows
17455,297
Factor Arrows
1923,963
Factor Arrows
31773

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, 17, 19, 31, 773

We can check our work by multiplying all of the prime factors together: 3 x 17 x 19 x 31 x 773 = 23,220,147

This can also be written as 31 x 171 x 191 x 311 x 7731 = 23,220,147

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


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