Q: What are the prime factors of the number 77,880,600?

 A: 2, 3, 5, 7, 883

Why are those the prime factors of the number 77,880,600?

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 77,880,600

77,880,600
Factor Arrows
238,940,300
Factor Arrows
219,470,150
Factor Arrows
29,735,075
Factor Arrows
33,245,025
Factor Arrows
31,081,675
Factor Arrows
5216,335
Factor Arrows
543,267
Factor Arrows
76,181
Factor Arrows
7883

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, 7, 883

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 5 x 7 x 7 x 883 = 77,880,600

This can also be written as 23 x 32 x 52 x 72 x 8831 = 77,880,600

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


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