Q: What are the prime factors of the number 4,070,016?

 A: 2, 3, 3533

Why are those the prime factors of the number 4,070,016?

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 4,070,016

4,070,016
Factor Arrows
22,035,008
Factor Arrows
21,017,504
Factor Arrows
2508,752
Factor Arrows
2254,376
Factor Arrows
2127,188
Factor Arrows
263,594
Factor Arrows
231,797
Factor Arrows
310,599
Factor Arrows
33,533

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, 3533

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 3 x 3 x 3,533 = 4,070,016

This can also be written as 27 x 32 x 3,5331 = 4,070,016

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


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