Q: What are the prime factors of the number 102,685,680?

 A: 2, 3, 5, 142619

Why are those the prime factors of the number 102,685,680?

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 102,685,680

102,685,680
Factor Arrows
251,342,840
Factor Arrows
225,671,420
Factor Arrows
212,835,710
Factor Arrows
26,417,855
Factor Arrows
32,139,285
Factor Arrows
3713,095
Factor Arrows
5142,619

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, 142619

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 142,619 = 102,685,680

This can also be written as 24 x 32 x 51 x 142,6191 = 102,685,680

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


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