Q: What are the prime factors of the number 104,209,980?

 A: 2, 3, 5, 7, 248119

Why are those the prime factors of the number 104,209,980?

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 104,209,980

104,209,980
Factor Arrows
252,104,990
Factor Arrows
226,052,495
Factor Arrows
38,684,165
Factor Arrows
51,736,833
Factor Arrows
7248,119

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, 5, 7, 248119

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 248,119 = 104,209,980

This can also be written as 22 x 31 x 51 x 71 x 248,1191 = 104,209,980

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


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