Q: What are the prime factors of the number 1,689,248?

 A: 2, 11, 4799

Why are those the prime factors of the number 1,689,248?

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 1,689,248

1,689,248
Factor Arrows
2844,624
Factor Arrows
2422,312
Factor Arrows
2211,156
Factor Arrows
2105,578
Factor Arrows
252,789
Factor Arrows
114,799

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, 4799

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 4,799 = 1,689,248

This can also be written as 25 x 111 x 4,7991 = 1,689,248

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


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