Q: What are the prime factors of the number 803,264?

 A: 2, 7, 11, 163

Why are those the prime factors of the number 803,264?

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 803,264

803,264
Factor Arrows
2401,632
Factor Arrows
2200,816
Factor Arrows
2100,408
Factor Arrows
250,204
Factor Arrows
225,102
Factor Arrows
212,551
Factor Arrows
71,793
Factor Arrows
11163

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, 7, 11, 163

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 7 x 11 x 163 = 803,264

This can also be written as 26 x 71 x 111 x 1631 = 803,264

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


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