Q: What are the prime factors of the number 4,450,545?

 A: 3, 5, 11, 37

Why are those the prime factors of the number 4,450,545?

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 4,450,545

4,450,545
Factor Arrows
31,483,515
Factor Arrows
3494,505
Factor Arrows
3164,835
Factor Arrows
354,945
Factor Arrows
318,315
Factor Arrows
36,105
Factor Arrows
32,035
Factor Arrows
5407
Factor Arrows
1137

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:

3, 5, 11, 37

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 11 x 37 = 4,450,545

This can also be written as 37 x 51 x 111 x 371 = 4,450,545

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


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