Q: What are the prime factors of the number 21,534,848?

 A: 2, 83, 2027

Why are those the prime factors of the number 21,534,848?

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 21,534,848

21,534,848
Factor Arrows
210,767,424
Factor Arrows
25,383,712
Factor Arrows
22,691,856
Factor Arrows
21,345,928
Factor Arrows
2672,964
Factor Arrows
2336,482
Factor Arrows
2168,241
Factor Arrows
832,027

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, 83, 2027

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 83 x 2,027 = 21,534,848

This can also be written as 27 x 831 x 2,0271 = 21,534,848

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


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