Q: What are the prime factors of the number 7,639,394?

 A: 2, 7, 137, 569

Why are those the prime factors of the number 7,639,394?

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 7,639,394

7,639,394
Factor Arrows
23,819,697
Factor Arrows
7545,671
Factor Arrows
777,953
Factor Arrows
137569

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, 7, 137, 569

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 137 x 569 = 7,639,394

This can also be written as 21 x 72 x 1371 x 5691 = 7,639,394

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


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