Q: What are the prime factors of the number 762,420?

 A: 2, 3, 5, 97, 131

Why are those the prime factors of the number 762,420?

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 762,420

762,420
Factor Arrows
2381,210
Factor Arrows
2190,605
Factor Arrows
363,535
Factor Arrows
512,707
Factor Arrows
97131

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, 97, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 97 x 131 = 762,420

This can also be written as 22 x 31 x 51 x 971 x 1311 = 762,420

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


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