Q: What are the prime factors of the number 13,738,624?

 A: 2, 181, 593

Why are those the prime factors of the number 13,738,624?

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 13,738,624

13,738,624
Factor Arrows
26,869,312
Factor Arrows
23,434,656
Factor Arrows
21,717,328
Factor Arrows
2858,664
Factor Arrows
2429,332
Factor Arrows
2214,666
Factor Arrows
2107,333
Factor Arrows
181593

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, 181, 593

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 181 x 593 = 13,738,624

This can also be written as 27 x 1811 x 5931 = 13,738,624

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


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