Q: What are the prime factors of the number 749,428?

 A: 2, 17, 103, 107

Why are those the prime factors of the number 749,428?

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 749,428

749,428
Factor Arrows
2374,714
Factor Arrows
2187,357
Factor Arrows
1711,021
Factor Arrows
103107

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, 17, 103, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 103 x 107 = 749,428

This can also be written as 22 x 171 x 1031 x 1071 = 749,428

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


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