Q: What are the prime factors of the number 36,820,281?

 A: 3, 31, 283, 1399

Why are those the prime factors of the number 36,820,281?

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 36,820,281

36,820,281
Factor Arrows
312,273,427
Factor Arrows
31395,917
Factor Arrows
2831,399

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:

3, 31, 283, 1399

We can check our work by multiplying all of the prime factors together: 3 x 31 x 283 x 1,399 = 36,820,281

This can also be written as 31 x 311 x 2831 x 1,3991 = 36,820,281

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


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