Q: What are the prime factors of the number 102,007,040?

 A: 2, 5, 79693

Why are those the prime factors of the number 102,007,040?

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 102,007,040

102,007,040
Factor Arrows
251,003,520
Factor Arrows
225,501,760
Factor Arrows
212,750,880
Factor Arrows
26,375,440
Factor Arrows
23,187,720
Factor Arrows
21,593,860
Factor Arrows
2796,930
Factor Arrows
2398,465
Factor Arrows
579,693

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, 79693

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 2 x 2 x 5 x 79,693 = 102,007,040

This can also be written as 28 x 51 x 79,6931 = 102,007,040

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


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