Q: What are the prime factors of the number 43,296,740?

 A: 2, 5, 67, 79, 409

Why are those the prime factors of the number 43,296,740?

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 43,296,740

43,296,740
Factor Arrows
221,648,370
Factor Arrows
210,824,185
Factor Arrows
52,164,837
Factor Arrows
6732,311
Factor Arrows
79409

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, 5, 67, 79, 409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 67 x 79 x 409 = 43,296,740

This can also be written as 22 x 51 x 671 x 791 x 4091 = 43,296,740

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


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