Q: What are the prime factors of the number 110,721,828?

 A: 2, 3, 7, 211, 6247

Why are those the prime factors of the number 110,721,828?

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 110,721,828

110,721,828
Factor Arrows
255,360,914
Factor Arrows
227,680,457
Factor Arrows
39,226,819
Factor Arrows
71,318,117
Factor Arrows
2116,247

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, 7, 211, 6247

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 211 x 6,247 = 110,721,828

This can also be written as 22 x 31 x 71 x 2111 x 6,2471 = 110,721,828

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


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