Q: What are the prime factors of the number 3,184,384?

 A: 2, 7, 1777

Why are those the prime factors of the number 3,184,384?

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 3,184,384

3,184,384
Factor Arrows
21,592,192
Factor Arrows
2796,096
Factor Arrows
2398,048
Factor Arrows
2199,024
Factor Arrows
299,512
Factor Arrows
249,756
Factor Arrows
224,878
Factor Arrows
212,439
Factor Arrows
71,777

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, 7, 1777

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 7 x 1,777 = 3,184,384

This can also be written as 28 x 71 x 1,7771 = 3,184,384

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


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