Q: What are the prime factors of the number 4,318,056?

 A: 2, 3, 19991

Why are those the prime factors of the number 4,318,056?

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 4,318,056

4,318,056
Factor Arrows
22,159,028
Factor Arrows
21,079,514
Factor Arrows
2539,757
Factor Arrows
3179,919
Factor Arrows
359,973
Factor Arrows
319,991

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, 19991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 19,991 = 4,318,056

This can also be written as 23 x 33 x 19,9911 = 4,318,056

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


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