Q: What are the prime factors of the number 415,046,464?

 A: 2, 7, 37, 73

Why are those the prime factors of the number 415,046,464?

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 415,046,464

415,046,464
Factor Arrows
2207,523,232
Factor Arrows
2103,761,616
Factor Arrows
251,880,808
Factor Arrows
225,940,404
Factor Arrows
212,970,202
Factor Arrows
26,485,101
Factor Arrows
7926,443
Factor Arrows
7132,349
Factor Arrows
718,907
Factor Arrows
72,701
Factor Arrows
3773

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, 7, 37, 73

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 7 x 7 x 7 x 7 x 37 x 73 = 415,046,464

This can also be written as 26 x 74 x 371 x 731 = 415,046,464

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


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