Q: What are the prime factors of the number 524,096?

 A: 2, 19, 431

Why are those the prime factors of the number 524,096?

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 524,096

524,096
Factor Arrows
2262,048
Factor Arrows
2131,024
Factor Arrows
265,512
Factor Arrows
232,756
Factor Arrows
216,378
Factor Arrows
28,189
Factor Arrows
19431

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, 19, 431

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 19 x 431 = 524,096

This can also be written as 26 x 191 x 4311 = 524,096

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


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