Q: What are the prime factors of the number 46,471,744?

 A: 2, 11, 17, 353

Why are those the prime factors of the number 46,471,744?

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 46,471,744

46,471,744
Factor Arrows
223,235,872
Factor Arrows
211,617,936
Factor Arrows
25,808,968
Factor Arrows
22,904,484
Factor Arrows
21,452,242
Factor Arrows
2726,121
Factor Arrows
1166,011
Factor Arrows
116,001
Factor Arrows
17353

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, 11, 17, 353

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 11 x 11 x 17 x 353 = 46,471,744

This can also be written as 26 x 112 x 171 x 3531 = 46,471,744

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


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