Q: What are the prime factors of the number 16,277,504?

 A: 2, 1987

Why are those the prime factors of the number 16,277,504?

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 16,277,504

16,277,504
Factor Arrows
28,138,752
Factor Arrows
24,069,376
Factor Arrows
22,034,688
Factor Arrows
21,017,344
Factor Arrows
2508,672
Factor Arrows
2254,336
Factor Arrows
2127,168
Factor Arrows
263,584
Factor Arrows
231,792
Factor Arrows
215,896
Factor Arrows
27,948
Factor Arrows
23,974
Factor Arrows
21,987

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, 1987

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 2 x 2 x 2 x 2 x 2 x 2 x 1,987 = 16,277,504

This can also be written as 213 x 1,9871 = 16,277,504

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


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