Q: What are the prime factors of the number 10,778,922?

 A: 2, 3, 7, 11, 101

Why are those the prime factors of the number 10,778,922?

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 10,778,922

10,778,922
Factor Arrows
25,389,461
Factor Arrows
31,796,487
Factor Arrows
3598,829
Factor Arrows
785,547
Factor Arrows
712,221
Factor Arrows
111,111
Factor Arrows
11101

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, 101

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 11 x 11 x 101 = 10,778,922

This can also be written as 21 x 32 x 72 x 112 x 1011 = 10,778,922

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


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