Q: What are the prime factors of the number 35,751,840?

 A: 2, 3, 5, 211, 353

Why are those the prime factors of the number 35,751,840?

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 35,751,840

35,751,840
Factor Arrows
217,875,920
Factor Arrows
28,937,960
Factor Arrows
24,468,980
Factor Arrows
22,234,490
Factor Arrows
21,117,245
Factor Arrows
3372,415
Factor Arrows
574,483
Factor Arrows
211353

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, 211, 353

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 211 x 353 = 35,751,840

This can also be written as 25 x 31 x 51 x 2111 x 3531 = 35,751,840

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


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