Q: What are the prime factors of the number 128,437,837?

Why are those the prime factors of the number 128,437,837?

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 128,437,837

	128,437,837
11		11,676,167
	397		29,411

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:

11, 397, 29411

We can check our work by multiplying all of the prime factors together: 11 x 397 x 29,411 = 128,437,837

This can also be written as 11¹ x 397¹ x 29,411¹ = 128,437,837

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

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