Q: What are the prime factors of the number 355,643,159?

Why are those the prime factors of the number 355,643,159?

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 355,643,159

	355,643,159
19		18,718,061
	563		33,247

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:

19, 563, 33247

We can check our work by multiplying all of the prime factors together: 19 x 563 x 33,247 = 355,643,159

This can also be written as 19¹ x 563¹ x 33,247¹ = 355,643,159

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

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