Q: What are the prime factors of the number 16,756,461?

 A: 3, 19, 29, 31, 109

Why are those the prime factors of the number 16,756,461?

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 16,756,461

16,756,461
Factor Arrows
35,585,487
Factor Arrows
31,861,829
Factor Arrows
1997,991
Factor Arrows
293,379
Factor Arrows
31109

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:

3, 19, 29, 31, 109

We can check our work by multiplying all of the prime factors together: 3 x 3 x 19 x 29 x 31 x 109 = 16,756,461

This can also be written as 32 x 191 x 291 x 311 x 1091 = 16,756,461

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


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