Q: What are the prime factors of the number 65,221,794?

 A: 2, 3, 11, 19, 5779

Why are those the prime factors of the number 65,221,794?

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 65,221,794

65,221,794
Factor Arrows
232,610,897
Factor Arrows
310,870,299
Factor Arrows
33,623,433
Factor Arrows
31,207,811
Factor Arrows
11109,801
Factor Arrows
195,779

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, 19, 5779

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 19 x 5,779 = 65,221,794

This can also be written as 21 x 33 x 111 x 191 x 5,7791 = 65,221,794

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


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