Q: What are the prime factors of the number 16,565,736?

 A: 2, 3, 11, 131, 479

Why are those the prime factors of the number 16,565,736?

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 16,565,736

16,565,736
Factor Arrows
28,282,868
Factor Arrows
24,141,434
Factor Arrows
22,070,717
Factor Arrows
3690,239
Factor Arrows
1162,749
Factor Arrows
131479

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, 11, 131, 479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 131 x 479 = 16,565,736

This can also be written as 23 x 31 x 111 x 1311 x 4791 = 16,565,736

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


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