Q: What are the prime factors of the number 42,024,768?

 A: 2, 3, 47, 4657

Why are those the prime factors of the number 42,024,768?

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 42,024,768

42,024,768
Factor Arrows
221,012,384
Factor Arrows
210,506,192
Factor Arrows
25,253,096
Factor Arrows
22,626,548
Factor Arrows
21,313,274
Factor Arrows
2656,637
Factor Arrows
3218,879
Factor Arrows
474,657

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, 47, 4657

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 47 x 4,657 = 42,024,768

This can also be written as 26 x 31 x 471 x 4,6571 = 42,024,768

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


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