Q: What are the prime factors of the number 102,220,768?

 A: 2, 13, 245723

Why are those the prime factors of the number 102,220,768?

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 102,220,768

102,220,768
Factor Arrows
251,110,384
Factor Arrows
225,555,192
Factor Arrows
212,777,596
Factor Arrows
26,388,798
Factor Arrows
23,194,399
Factor Arrows
13245,723

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, 13, 245723

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 245,723 = 102,220,768

This can also be written as 25 x 131 x 245,7231 = 102,220,768

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


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