Q: What are the prime factors of the number 79,056,900?

 A: 2, 3, 5, 13, 29, 233

Why are those the prime factors of the number 79,056,900?

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 79,056,900

79,056,900
Factor Arrows
239,528,450
Factor Arrows
219,764,225
Factor Arrows
36,588,075
Factor Arrows
32,196,025
Factor Arrows
5439,205
Factor Arrows
587,841
Factor Arrows
136,757
Factor Arrows
29233

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, 5, 13, 29, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 5 x 13 x 29 x 233 = 79,056,900

This can also be written as 22 x 32 x 52 x 131 x 291 x 2331 = 79,056,900

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


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