Q: What are the prime factors of the number 3,139,264?

 A: 2, 181, 271

Why are those the prime factors of the number 3,139,264?

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 3,139,264

3,139,264
Factor Arrows
21,569,632
Factor Arrows
2784,816
Factor Arrows
2392,408
Factor Arrows
2196,204
Factor Arrows
298,102
Factor Arrows
249,051
Factor Arrows
181271

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, 181, 271

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 181 x 271 = 3,139,264

This can also be written as 26 x 1811 x 2711 = 3,139,264

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


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