Q: What are the prime factors of the number 2,163,712?

 A: 2, 2113

Why are those the prime factors of the number 2,163,712?

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 2,163,712

2,163,712
Factor Arrows
21,081,856
Factor Arrows
2540,928
Factor Arrows
2270,464
Factor Arrows
2135,232
Factor Arrows
267,616
Factor Arrows
233,808
Factor Arrows
216,904
Factor Arrows
28,452
Factor Arrows
24,226
Factor Arrows
22,113

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, 2113

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 2 x 2 x 2 x 2,113 = 2,163,712

This can also be written as 210 x 2,1131 = 2,163,712

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


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