Q: What are the prime factors of the number 6,347,264?

 A: 2, 7, 11, 23

Why are those the prime factors of the number 6,347,264?

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 6,347,264

6,347,264
Factor Arrows
23,173,632
Factor Arrows
21,586,816
Factor Arrows
2793,408
Factor Arrows
2396,704
Factor Arrows
2198,352
Factor Arrows
299,176
Factor Arrows
249,588
Factor Arrows
224,794
Factor Arrows
212,397
Factor Arrows
71,771
Factor Arrows
7253
Factor Arrows
1123

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, 23

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 2 x 7 x 7 x 11 x 23 = 6,347,264

This can also be written as 29 x 72 x 111 x 231 = 6,347,264

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


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