Q: What are the prime factors of the number 38,965,989?

 A: 3, 17, 281, 2719

Why are those the prime factors of the number 38,965,989?

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 38,965,989

38,965,989
Factor Arrows
312,988,663
Factor Arrows
17764,039
Factor Arrows
2812,719

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, 17, 281, 2719

We can check our work by multiplying all of the prime factors together: 3 x 17 x 281 x 2,719 = 38,965,989

This can also be written as 31 x 171 x 2811 x 2,7191 = 38,965,989

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


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