Q: What are the prime factors of the number 65,022,320?

 A: 2, 5, 11, 37, 1997

Why are those the prime factors of the number 65,022,320?

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 65,022,320

65,022,320
Factor Arrows
232,511,160
Factor Arrows
216,255,580
Factor Arrows
28,127,790
Factor Arrows
24,063,895
Factor Arrows
5812,779
Factor Arrows
1173,889
Factor Arrows
371,997

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, 5, 11, 37, 1997

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 37 x 1,997 = 65,022,320

This can also be written as 24 x 51 x 111 x 371 x 1,9971 = 65,022,320

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


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