Q: What are the prime factors of the number 3,966,848?

 A: 2, 17, 1823

Why are those the prime factors of the number 3,966,848?

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 3,966,848

3,966,848
Factor Arrows
21,983,424
Factor Arrows
2991,712
Factor Arrows
2495,856
Factor Arrows
2247,928
Factor Arrows
2123,964
Factor Arrows
261,982
Factor Arrows
230,991
Factor Arrows
171,823

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, 17, 1823

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 17 x 1,823 = 3,966,848

This can also be written as 27 x 171 x 1,8231 = 3,966,848

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


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