Q: What are the prime factors of the number 747,445,374?

 A: 2, 3, 13, 1064737

Why are those the prime factors of the number 747,445,374?

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 747,445,374

747,445,374
Factor Arrows
2373,722,687
Factor Arrows
3124,574,229
Factor Arrows
341,524,743
Factor Arrows
313,841,581
Factor Arrows
131,064,737

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, 1064737

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 13 x 1,064,737 = 747,445,374

This can also be written as 21 x 33 x 131 x 1,064,7371 = 747,445,374

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


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