Q: What are the prime factors of the number 89,197,810?

 A: 2, 5, 13, 17, 40361

Why are those the prime factors of the number 89,197,810?

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 89,197,810

89,197,810
Factor Arrows
244,598,905
Factor Arrows
58,919,781
Factor Arrows
13686,137
Factor Arrows
1740,361

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, 13, 17, 40361

We can check our work by multiplying all of the prime factors together: 2 x 5 x 13 x 17 x 40,361 = 89,197,810

This can also be written as 21 x 51 x 131 x 171 x 40,3611 = 89,197,810

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


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