Q: What are the prime factors of the number 15,341,550?

 A: 2, 3, 5, 7, 19, 769

Why are those the prime factors of the number 15,341,550?

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 15,341,550

15,341,550
Factor Arrows
27,670,775
Factor Arrows
32,556,925
Factor Arrows
5511,385
Factor Arrows
5102,277
Factor Arrows
714,611
Factor Arrows
19769

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, 5, 7, 19, 769

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 7 x 19 x 769 = 15,341,550

This can also be written as 21 x 31 x 52 x 71 x 191 x 7691 = 15,341,550

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


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