Q: What are the prime factors of the number 64,021,023?

 A: 3, 11, 43, 557

Why are those the prime factors of the number 64,021,023?

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 64,021,023

64,021,023
Factor Arrows
321,340,341
Factor Arrows
37,113,447
Factor Arrows
32,371,149
Factor Arrows
3790,383
Factor Arrows
3263,461
Factor Arrows
1123,951
Factor Arrows
43557

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:

3, 11, 43, 557

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 11 x 43 x 557 = 64,021,023

This can also be written as 35 x 111 x 431 x 5571 = 64,021,023

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


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