Q: What are the prime factors of the number 42,734,048?

 A: 2, 7, 71, 2687

Why are those the prime factors of the number 42,734,048?

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 42,734,048

42,734,048
Factor Arrows
221,367,024
Factor Arrows
210,683,512
Factor Arrows
25,341,756
Factor Arrows
22,670,878
Factor Arrows
21,335,439
Factor Arrows
7190,777
Factor Arrows
712,687

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, 7, 71, 2687

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 71 x 2,687 = 42,734,048

This can also be written as 25 x 71 x 711 x 2,6871 = 42,734,048

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


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