Q: What are the prime factors of the number 35,704,320?

 A: 2, 3, 5, 4649

Why are those the prime factors of the number 35,704,320?

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 35,704,320

35,704,320
Factor Arrows
217,852,160
Factor Arrows
28,926,080
Factor Arrows
24,463,040
Factor Arrows
22,231,520
Factor Arrows
21,115,760
Factor Arrows
2557,880
Factor Arrows
2278,940
Factor Arrows
2139,470
Factor Arrows
269,735
Factor Arrows
323,245
Factor Arrows
54,649

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, 4649

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 2 x 3 x 5 x 4,649 = 35,704,320

This can also be written as 29 x 31 x 51 x 4,6491 = 35,704,320

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


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