Q: What are the prime factors of the number 77,353,458?

 A: 2, 3, 7, 13, 37, 547

Why are those the prime factors of the number 77,353,458?

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 77,353,458

77,353,458
Factor Arrows
238,676,729
Factor Arrows
312,892,243
Factor Arrows
71,841,749
Factor Arrows
7263,107
Factor Arrows
1320,239
Factor Arrows
37547

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, 7, 13, 37, 547

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 13 x 37 x 547 = 77,353,458

This can also be written as 21 x 31 x 72 x 131 x 371 x 5471 = 77,353,458

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


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