Q: What are the prime factors of the number 13,822,578?

 A: 2, 3, 7, 11, 9973

Why are those the prime factors of the number 13,822,578?

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 13,822,578

13,822,578
Factor Arrows
26,911,289
Factor Arrows
32,303,763
Factor Arrows
3767,921
Factor Arrows
7109,703
Factor Arrows
119,973

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, 11, 9973

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 11 x 9,973 = 13,822,578

This can also be written as 21 x 32 x 71 x 111 x 9,9731 = 13,822,578

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


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