Q: What are the prime factors of the number 43,605,375?

 A: 3, 5, 11, 31

Why are those the prime factors of the number 43,605,375?

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 43,605,375

43,605,375
Factor Arrows
314,535,125
Factor Arrows
52,907,025
Factor Arrows
5581,405
Factor Arrows
5116,281
Factor Arrows
1110,571
Factor Arrows
11961
Factor Arrows
3131

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, 31

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 11 x 11 x 31 x 31 = 43,605,375

This can also be written as 31 x 53 x 112 x 312 = 43,605,375

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


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