Q: What are the prime factors of the number 46,538,550?

 A: 2, 3, 5, 11491

Why are those the prime factors of the number 46,538,550?

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 46,538,550

46,538,550
Factor Arrows
223,269,275
Factor Arrows
37,756,425
Factor Arrows
32,585,475
Factor Arrows
3861,825
Factor Arrows
3287,275
Factor Arrows
557,455
Factor Arrows
511,491

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, 11491

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 5 x 5 x 11,491 = 46,538,550

This can also be written as 21 x 34 x 52 x 11,4911 = 46,538,550

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


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