Q: What are the prime factors of the number 13,422,304?

 A: 2, 7, 59921

Why are those the prime factors of the number 13,422,304?

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 13,422,304

13,422,304
Factor Arrows
26,711,152
Factor Arrows
23,355,576
Factor Arrows
21,677,788
Factor Arrows
2838,894
Factor Arrows
2419,447
Factor Arrows
759,921

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, 59921

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 59,921 = 13,422,304

This can also be written as 25 x 71 x 59,9211 = 13,422,304

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


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