Q: What are the prime factors of the number 4,358,016?

 A: 2, 3, 13, 97

Why are those the prime factors of the number 4,358,016?

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 4,358,016

4,358,016
Factor Arrows
22,179,008
Factor Arrows
21,089,504
Factor Arrows
2544,752
Factor Arrows
2272,376
Factor Arrows
2136,188
Factor Arrows
268,094
Factor Arrows
234,047
Factor Arrows
311,349
Factor Arrows
33,783
Factor Arrows
31,261
Factor Arrows
1397

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, 13, 97

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 x 13 x 97 = 4,358,016

This can also be written as 27 x 33 x 131 x 971 = 4,358,016

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


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