Q: What are the prime factors of the number 15,772,755?

 A: 3, 5, 19, 55343

Why are those the prime factors of the number 15,772,755?

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 15,772,755

15,772,755
Factor Arrows
35,257,585
Factor Arrows
51,051,517
Factor Arrows
1955,343

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, 19, 55343

We can check our work by multiplying all of the prime factors together: 3 x 5 x 19 x 55,343 = 15,772,755

This can also be written as 31 x 51 x 191 x 55,3431 = 15,772,755

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


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