Q: What are the prime factors of the number 1,728,848?

 A: 2, 11, 19, 47

Why are those the prime factors of the number 1,728,848?

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 1,728,848

1,728,848
Factor Arrows
2864,424
Factor Arrows
2432,212
Factor Arrows
2216,106
Factor Arrows
2108,053
Factor Arrows
119,823
Factor Arrows
11893
Factor Arrows
1947

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, 11, 19, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 11 x 19 x 47 = 1,728,848

This can also be written as 24 x 112 x 191 x 471 = 1,728,848

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


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