Q: What are the prime factors of the number 46,416,645?

 A: 3, 5, 11, 23, 151

Why are those the prime factors of the number 46,416,645?

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 46,416,645

46,416,645
Factor Arrows
315,472,215
Factor Arrows
35,157,405
Factor Arrows
31,719,135
Factor Arrows
3573,045
Factor Arrows
3191,015
Factor Arrows
538,203
Factor Arrows
113,473
Factor Arrows
23151

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:

3, 5, 11, 23, 151

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 11 x 23 x 151 = 46,416,645

This can also be written as 35 x 51 x 111 x 231 x 1511 = 46,416,645

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


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