Q: What are the prime factors of the number 220,104,128?

 A: 2, 179, 19213

Why are those the prime factors of the number 220,104,128?

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 220,104,128

220,104,128
Factor Arrows
2110,052,064
Factor Arrows
255,026,032
Factor Arrows
227,513,016
Factor Arrows
213,756,508
Factor Arrows
26,878,254
Factor Arrows
23,439,127
Factor Arrows
17919,213

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, 179, 19213

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 179 x 19,213 = 220,104,128

This can also be written as 26 x 1791 x 19,2131 = 220,104,128

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


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