Q: What are the prime factors of the number 35,331,040?

 A: 2, 5, 461, 479

Why are those the prime factors of the number 35,331,040?

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 35,331,040

35,331,040
Factor Arrows
217,665,520
Factor Arrows
28,832,760
Factor Arrows
24,416,380
Factor Arrows
22,208,190
Factor Arrows
21,104,095
Factor Arrows
5220,819
Factor Arrows
461479

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, 461, 479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 461 x 479 = 35,331,040

This can also be written as 25 x 51 x 4611 x 4791 = 35,331,040

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


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