Q: What are the prime factors of the number 665,210,310?

 A: 2, 3, 5, 73, 303749

Why are those the prime factors of the number 665,210,310?

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 665,210,310

665,210,310
Factor Arrows
2332,605,155
Factor Arrows
3110,868,385
Factor Arrows
522,173,677
Factor Arrows
73303,749

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, 73, 303749

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 73 x 303,749 = 665,210,310

This can also be written as 21 x 31 x 51 x 731 x 303,7491 = 665,210,310

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


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