Q: What are the prime factors of the number 110,323,420?

 A: 2, 5, 31, 107, 1663

Why are those the prime factors of the number 110,323,420?

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 110,323,420

110,323,420
Factor Arrows
255,161,710
Factor Arrows
227,580,855
Factor Arrows
55,516,171
Factor Arrows
31177,941
Factor Arrows
1071,663

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, 5, 31, 107, 1663

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 31 x 107 x 1,663 = 110,323,420

This can also be written as 22 x 51 x 311 x 1071 x 1,6631 = 110,323,420

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


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