Q: What are the prime factors of the number 36,140,160?

 A: 2, 3, 5, 7, 2689

Why are those the prime factors of the number 36,140,160?

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 36,140,160

36,140,160
Factor Arrows
218,070,080
Factor Arrows
29,035,040
Factor Arrows
24,517,520
Factor Arrows
22,258,760
Factor Arrows
21,129,380
Factor Arrows
2564,690
Factor Arrows
2282,345
Factor Arrows
394,115
Factor Arrows
518,823
Factor Arrows
72,689

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, 2689

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 3 x 5 x 7 x 2,689 = 36,140,160

This can also be written as 27 x 31 x 51 x 71 x 2,6891 = 36,140,160

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


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