Q: What are the prime factors of the number 16,046,128?

 A: 2, 7, 97, 211

Why are those the prime factors of the number 16,046,128?

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 16,046,128

16,046,128
Factor Arrows
28,023,064
Factor Arrows
24,011,532
Factor Arrows
22,005,766
Factor Arrows
21,002,883
Factor Arrows
7143,269
Factor Arrows
720,467
Factor Arrows
97211

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, 7, 97, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 97 x 211 = 16,046,128

This can also be written as 24 x 72 x 971 x 2111 = 16,046,128

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


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