Q: What are the prime factors of the number 45,525,144?

 A: 2, 3, 7, 101, 2683

Why are those the prime factors of the number 45,525,144?

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 45,525,144

45,525,144
Factor Arrows
222,762,572
Factor Arrows
211,381,286
Factor Arrows
25,690,643
Factor Arrows
31,896,881
Factor Arrows
7270,983
Factor Arrows
1012,683

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, 7, 101, 2683

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 101 x 2,683 = 45,525,144

This can also be written as 23 x 31 x 71 x 1011 x 2,6831 = 45,525,144

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


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