Q: What are the prime factors of the number 77,465,216?

 A: 2, 587, 1031

Why are those the prime factors of the number 77,465,216?

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 77,465,216

77,465,216
Factor Arrows
238,732,608
Factor Arrows
219,366,304
Factor Arrows
29,683,152
Factor Arrows
24,841,576
Factor Arrows
22,420,788
Factor Arrows
21,210,394
Factor Arrows
2605,197
Factor Arrows
5871,031

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, 587, 1031

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 587 x 1,031 = 77,465,216

This can also be written as 27 x 5871 x 1,0311 = 77,465,216

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


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