Q: What are the prime factors of the number 13,264,398?

 A: 2, 3, 7, 557

Why are those the prime factors of the number 13,264,398?

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 13,264,398

13,264,398
Factor Arrows
26,632,199
Factor Arrows
32,210,733
Factor Arrows
3736,911
Factor Arrows
3245,637
Factor Arrows
381,879
Factor Arrows
327,293
Factor Arrows
73,899
Factor Arrows
7557

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, 7, 557

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 7 x 7 x 557 = 13,264,398

This can also be written as 21 x 35 x 72 x 5571 = 13,264,398

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


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