Q: What are the prime factors of the number 13,440,256?

 A: 2, 52501

Why are those the prime factors of the number 13,440,256?

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 13,440,256

13,440,256
Factor Arrows
26,720,128
Factor Arrows
23,360,064
Factor Arrows
21,680,032
Factor Arrows
2840,016
Factor Arrows
2420,008
Factor Arrows
2210,004
Factor Arrows
2105,002
Factor Arrows
252,501

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, 52501

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 52,501 = 13,440,256

This can also be written as 28 x 52,5011 = 13,440,256

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


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