Q: What are the prime factors of the number 763,938?

 A: 2, 3, 7, 43, 47

Why are those the prime factors of the number 763,938?

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 763,938

763,938
Factor Arrows
2381,969
Factor Arrows
3127,323
Factor Arrows
342,441
Factor Arrows
314,147
Factor Arrows
72,021
Factor Arrows
4347

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, 7, 43, 47

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 43 x 47 = 763,938

This can also be written as 21 x 33 x 71 x 431 x 471 = 763,938

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


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