Q: What are the prime factors of the number 3,926,664?

 A: 2, 3, 7, 53

Why are those the prime factors of the number 3,926,664?

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 3,926,664

3,926,664
Factor Arrows
21,963,332
Factor Arrows
2981,666
Factor Arrows
2490,833
Factor Arrows
3163,611
Factor Arrows
354,537
Factor Arrows
318,179
Factor Arrows
72,597
Factor Arrows
7371
Factor Arrows
753

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, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 7 x 7 x 7 x 53 = 3,926,664

This can also be written as 23 x 33 x 73 x 531 = 3,926,664

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


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