Q: What are the prime factors of the number 45,048,256?

 A: 2, 11, 61, 1049

Why are those the prime factors of the number 45,048,256?

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 45,048,256

45,048,256
Factor Arrows
222,524,128
Factor Arrows
211,262,064
Factor Arrows
25,631,032
Factor Arrows
22,815,516
Factor Arrows
21,407,758
Factor Arrows
2703,879
Factor Arrows
1163,989
Factor Arrows
611,049

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, 61, 1049

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 61 x 1,049 = 45,048,256

This can also be written as 26 x 111 x 611 x 1,0491 = 45,048,256

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


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