Q: What are the prime factors of the number 104,542,340?

 A: 2, 5, 7, 677, 1103

Why are those the prime factors of the number 104,542,340?

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 104,542,340

104,542,340
Factor Arrows
252,271,170
Factor Arrows
226,135,585
Factor Arrows
55,227,117
Factor Arrows
7746,731
Factor Arrows
6771,103

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, 5, 7, 677, 1103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 677 x 1,103 = 104,542,340

This can also be written as 22 x 51 x 71 x 6771 x 1,1031 = 104,542,340

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


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