Q: What are the prime factors of the number 77,303,775?

 A: 3, 5, 61, 277

Why are those the prime factors of the number 77,303,775?

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 77,303,775

77,303,775
Factor Arrows
325,767,925
Factor Arrows
55,153,585
Factor Arrows
51,030,717
Factor Arrows
6116,897
Factor Arrows
61277

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:

3, 5, 61, 277

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 61 x 61 x 277 = 77,303,775

This can also be written as 31 x 52 x 612 x 2771 = 77,303,775

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


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