Q: What are the prime factors of the number 6,454,272?

 A: 2, 3, 11, 191

Why are those the prime factors of the number 6,454,272?

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 6,454,272

6,454,272
Factor Arrows
23,227,136
Factor Arrows
21,613,568
Factor Arrows
2806,784
Factor Arrows
2403,392
Factor Arrows
2201,696
Factor Arrows
2100,848
Factor Arrows
250,424
Factor Arrows
225,212
Factor Arrows
212,606
Factor Arrows
26,303
Factor Arrows
32,101
Factor Arrows
11191

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, 3, 11, 191

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 2 x 3 x 11 x 191 = 6,454,272

This can also be written as 210 x 31 x 111 x 1911 = 6,454,272

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


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