Q: What are the prime factors of the number 43,838,960?

 A: 2, 5, 11, 31, 1607

Why are those the prime factors of the number 43,838,960?

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 43,838,960

43,838,960
Factor Arrows
221,919,480
Factor Arrows
210,959,740
Factor Arrows
25,479,870
Factor Arrows
22,739,935
Factor Arrows
5547,987
Factor Arrows
1149,817
Factor Arrows
311,607

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, 5, 11, 31, 1607

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 31 x 1,607 = 43,838,960

This can also be written as 24 x 51 x 111 x 311 x 1,6071 = 43,838,960

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


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