Q: What are the prime factors of the number 16,121,648?

 A: 2, 487, 2069

Why are those the prime factors of the number 16,121,648?

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 16,121,648

16,121,648
Factor Arrows
28,060,824
Factor Arrows
24,030,412
Factor Arrows
22,015,206
Factor Arrows
21,007,603
Factor Arrows
4872,069

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, 487, 2069

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 487 x 2,069 = 16,121,648

This can also be written as 24 x 4871 x 2,0691 = 16,121,648

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


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