Q: What are the prime factors of the number 3,726,336?

 A: 2, 3, 1213

Why are those the prime factors of the number 3,726,336?

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 3,726,336

3,726,336
Factor Arrows
21,863,168
Factor Arrows
2931,584
Factor Arrows
2465,792
Factor Arrows
2232,896
Factor Arrows
2116,448
Factor Arrows
258,224
Factor Arrows
229,112
Factor Arrows
214,556
Factor Arrows
27,278
Factor Arrows
23,639
Factor Arrows
31,213

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, 1213

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 1,213 = 3,726,336

This can also be written as 210 x 31 x 1,2131 = 3,726,336

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


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