Q: What are the prime factors of the number 47,623,740?

 A: 2, 3, 5, 73, 83, 131

Why are those the prime factors of the number 47,623,740?

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 47,623,740

47,623,740
Factor Arrows
223,811,870
Factor Arrows
211,905,935
Factor Arrows
33,968,645
Factor Arrows
5793,729
Factor Arrows
7310,873
Factor Arrows
83131

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, 5, 73, 83, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 73 x 83 x 131 = 47,623,740

This can also be written as 22 x 31 x 51 x 731 x 831 x 1311 = 47,623,740

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


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