Q: What are the prime factors of the number 42,052,416?

 A: 2, 3, 7, 67, 467

Why are those the prime factors of the number 42,052,416?

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 42,052,416

42,052,416
Factor Arrows
221,026,208
Factor Arrows
210,513,104
Factor Arrows
25,256,552
Factor Arrows
22,628,276
Factor Arrows
21,314,138
Factor Arrows
2657,069
Factor Arrows
3219,023
Factor Arrows
731,289
Factor Arrows
67467

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, 7, 67, 467

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 7 x 67 x 467 = 42,052,416

This can also be written as 26 x 31 x 71 x 671 x 4671 = 42,052,416

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


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