Q: What are the prime factors of the number 46,547,568?

 A: 2, 3, 19, 53, 107

Why are those the prime factors of the number 46,547,568?

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 46,547,568

46,547,568
Factor Arrows
223,273,784
Factor Arrows
211,636,892
Factor Arrows
25,818,446
Factor Arrows
22,909,223
Factor Arrows
3969,741
Factor Arrows
3323,247
Factor Arrows
3107,749
Factor Arrows
195,671
Factor Arrows
53107

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, 19, 53, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 19 x 53 x 107 = 46,547,568

This can also be written as 24 x 33 x 191 x 531 x 1071 = 46,547,568

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


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