Q: What are the prime factors of the number 577,155,663?

 A: 3, 7, 71, 18433

Why are those the prime factors of the number 577,155,663?

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 577,155,663

577,155,663
Factor Arrows
3192,385,221
Factor Arrows
364,128,407
Factor Arrows
79,161,201
Factor Arrows
71,308,743
Factor Arrows
7118,433

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:

3, 7, 71, 18433

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 71 x 18,433 = 577,155,663

This can also be written as 32 x 72 x 711 x 18,4331 = 577,155,663

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


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