Q: What are the prime factors of the number 22,112,120?

 A: 2, 5, 41, 97, 139

Why are those the prime factors of the number 22,112,120?

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 22,112,120

22,112,120
Factor Arrows
211,056,060
Factor Arrows
25,528,030
Factor Arrows
22,764,015
Factor Arrows
5552,803
Factor Arrows
4113,483
Factor Arrows
97139

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, 41, 97, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 41 x 97 x 139 = 22,112,120

This can also be written as 23 x 51 x 411 x 971 x 1391 = 22,112,120

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


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