Q: What are the prime factors of the number 38,794,950?

 A: 2, 3, 5, 31, 103

Why are those the prime factors of the number 38,794,950?

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 38,794,950

38,794,950
Factor Arrows
219,397,475
Factor Arrows
36,465,825
Factor Arrows
32,155,275
Factor Arrows
3718,425
Factor Arrows
3239,475
Factor Arrows
379,825
Factor Arrows
515,965
Factor Arrows
53,193
Factor Arrows
31103

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, 31, 103

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 5 x 5 x 31 x 103 = 38,794,950

This can also be written as 21 x 35 x 52 x 311 x 1031 = 38,794,950

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


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