Q: What are the prime factors of the number 2,825,361?

 A: 3, 7, 11, 151

Why are those the prime factors of the number 2,825,361?

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 2,825,361

2,825,361
Factor Arrows
3941,787
Factor Arrows
3313,929
Factor Arrows
3104,643
Factor Arrows
334,881
Factor Arrows
311,627
Factor Arrows
71,661
Factor Arrows
11151

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:

3, 7, 11, 151

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 11 x 151 = 2,825,361

This can also be written as 35 x 71 x 111 x 1511 = 2,825,361

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


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