Q: What are the prime factors of the number 36,661,040?

 A: 2, 5, 13, 35251

Why are those the prime factors of the number 36,661,040?

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 36,661,040

36,661,040
Factor Arrows
218,330,520
Factor Arrows
29,165,260
Factor Arrows
24,582,630
Factor Arrows
22,291,315
Factor Arrows
5458,263
Factor Arrows
1335,251

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, 13, 35251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 13 x 35,251 = 36,661,040

This can also be written as 24 x 51 x 131 x 35,2511 = 36,661,040

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


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