Q: What are the prime factors of the number 764,430,120?

 A: 2, 3, 5, 1117, 1901

Why are those the prime factors of the number 764,430,120?

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 764,430,120

764,430,120
Factor Arrows
2382,215,060
Factor Arrows
2191,107,530
Factor Arrows
295,553,765
Factor Arrows
331,851,255
Factor Arrows
310,617,085
Factor Arrows
52,123,417
Factor Arrows
1,1171,901

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, 1117, 1901

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 1,117 x 1,901 = 764,430,120

This can also be written as 23 x 32 x 51 x 1,1171 x 1,9011 = 764,430,120

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


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