Q: What are the prime factors of the number 3,112,512?

 A: 2, 3, 13, 29, 43

Why are those the prime factors of the number 3,112,512?

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 3,112,512

3,112,512
Factor Arrows
21,556,256
Factor Arrows
2778,128
Factor Arrows
2389,064
Factor Arrows
2194,532
Factor Arrows
297,266
Factor Arrows
248,633
Factor Arrows
316,211
Factor Arrows
131,247
Factor Arrows
2943

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, 13, 29, 43

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 3 x 13 x 29 x 43 = 3,112,512

This can also be written as 26 x 31 x 131 x 291 x 431 = 3,112,512

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


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