Q: What are the prime factors of the number 77,473,734?

 A: 2, 3, 13, 993253

Why are those the prime factors of the number 77,473,734?

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 77,473,734

77,473,734
Factor Arrows
238,736,867
Factor Arrows
312,912,289
Factor Arrows
13993,253

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, 13, 993253

We can check our work by multiplying all of the prime factors together: 2 x 3 x 13 x 993,253 = 77,473,734

This can also be written as 21 x 31 x 131 x 993,2531 = 77,473,734

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


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