Q: What are the prime factors of the number 722,458,782?

 A: 2, 3, 31, 1294729

Why are those the prime factors of the number 722,458,782?

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 722,458,782

722,458,782
Factor Arrows
2361,229,391
Factor Arrows
3120,409,797
Factor Arrows
340,136,599
Factor Arrows
311,294,729

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, 31, 1294729

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 31 x 1,294,729 = 722,458,782

This can also be written as 21 x 32 x 311 x 1,294,7291 = 722,458,782

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


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