Q: What are the prime factors of the number 774,240,225?

 A: 3, 5, 11, 271, 3463

Why are those the prime factors of the number 774,240,225?

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 774,240,225

774,240,225
Factor Arrows
3258,080,075
Factor Arrows
551,616,015
Factor Arrows
510,323,203
Factor Arrows
11938,473
Factor Arrows
2713,463

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, 11, 271, 3463

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 11 x 271 x 3,463 = 774,240,225

This can also be written as 31 x 52 x 111 x 2711 x 3,4631 = 774,240,225

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


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