Q: What are the prime factors of the number 76,322,144?

 A: 2, 571, 4177

Why are those the prime factors of the number 76,322,144?

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 76,322,144

76,322,144
Factor Arrows
238,161,072
Factor Arrows
219,080,536
Factor Arrows
29,540,268
Factor Arrows
24,770,134
Factor Arrows
22,385,067
Factor Arrows
5714,177

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, 571, 4177

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 571 x 4,177 = 76,322,144

This can also be written as 25 x 5711 x 4,1771 = 76,322,144

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


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