Q: What are the prime factors of the number 773,646,224?

 A: 2, 13, 29, 128257

Why are those the prime factors of the number 773,646,224?

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 773,646,224

773,646,224
Factor Arrows
2386,823,112
Factor Arrows
2193,411,556
Factor Arrows
296,705,778
Factor Arrows
248,352,889
Factor Arrows
133,719,453
Factor Arrows
29128,257

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, 13, 29, 128257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 29 x 128,257 = 773,646,224

This can also be written as 24 x 131 x 291 x 128,2571 = 773,646,224

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


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