Q: What are the prime factors of the number 36,820,280?

 A: 2, 5, 7, 131501

Why are those the prime factors of the number 36,820,280?

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 36,820,280

36,820,280
Factor Arrows
218,410,140
Factor Arrows
29,205,070
Factor Arrows
24,602,535
Factor Arrows
5920,507
Factor Arrows
7131,501

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, 7, 131501

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 131,501 = 36,820,280

This can also be written as 23 x 51 x 71 x 131,5011 = 36,820,280

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


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