Q: What are the prime factors of the number 65,792?

 A: 2, 257

Why are those the prime factors of the number 65,792?

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 65,792

65,792
Factor Arrows
232,896
Factor Arrows
216,448
Factor Arrows
28,224
Factor Arrows
24,112
Factor Arrows
22,056
Factor Arrows
21,028
Factor Arrows
2514
Factor Arrows
2257

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, 257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 257 = 65,792

This can also be written as 28 x 2571 = 65,792

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


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