Q: What are the prime factors of the number 72,636,030?

 A: 2, 3, 5, 43, 137

Why are those the prime factors of the number 72,636,030?

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 72,636,030

72,636,030
Factor Arrows
236,318,015
Factor Arrows
312,106,005
Factor Arrows
34,035,335
Factor Arrows
5807,067
Factor Arrows
4318,769
Factor Arrows
137137

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, 43, 137

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 43 x 137 x 137 = 72,636,030

This can also be written as 21 x 32 x 51 x 431 x 1372 = 72,636,030

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


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