Q: What are the prime factors of the number 46,126,720?

 A: 2, 5, 72073

Why are those the prime factors of the number 46,126,720?

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 46,126,720

46,126,720
Factor Arrows
223,063,360
Factor Arrows
211,531,680
Factor Arrows
25,765,840
Factor Arrows
22,882,920
Factor Arrows
21,441,460
Factor Arrows
2720,730
Factor Arrows
2360,365
Factor Arrows
572,073

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, 72073

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 5 x 72,073 = 46,126,720

This can also be written as 27 x 51 x 72,0731 = 46,126,720

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


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