Q: What are the prime factors of the number 2,621,322?

 A: 2, 3, 11, 1471

Why are those the prime factors of the number 2,621,322?

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 2,621,322

2,621,322
Factor Arrows
21,310,661
Factor Arrows
3436,887
Factor Arrows
3145,629
Factor Arrows
348,543
Factor Arrows
316,181
Factor Arrows
111,471

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, 11, 1471

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 11 x 1,471 = 2,621,322

This can also be written as 21 x 34 x 111 x 1,4711 = 2,621,322

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


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