Q: What are the prime factors of the number 74,357,080?

 A: 2, 5, 7, 265561

Why are those the prime factors of the number 74,357,080?

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 74,357,080

74,357,080
Factor Arrows
237,178,540
Factor Arrows
218,589,270
Factor Arrows
29,294,635
Factor Arrows
51,858,927
Factor Arrows
7265,561

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, 7, 265561

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 265,561 = 74,357,080

This can also be written as 23 x 51 x 71 x 265,5611 = 74,357,080

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


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