Q: What are the prime factors of the number 43,073,408?

 A: 2, 7, 48073

Why are those the prime factors of the number 43,073,408?

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 43,073,408

43,073,408
Factor Arrows
221,536,704
Factor Arrows
210,768,352
Factor Arrows
25,384,176
Factor Arrows
22,692,088
Factor Arrows
21,346,044
Factor Arrows
2673,022
Factor Arrows
2336,511
Factor Arrows
748,073

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, 48073

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 2 x 7 x 48,073 = 43,073,408

This can also be written as 27 x 71 x 48,0731 = 43,073,408

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


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