Q: What are the prime factors of the number 154,798,668?

 A: 2, 3, 17, 84313

Why are those the prime factors of the number 154,798,668?

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 154,798,668

154,798,668
Factor Arrows
277,399,334
Factor Arrows
238,699,667
Factor Arrows
312,899,889
Factor Arrows
34,299,963
Factor Arrows
31,433,321
Factor Arrows
1784,313

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, 17, 84313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 17 x 84,313 = 154,798,668

This can also be written as 22 x 33 x 171 x 84,3131 = 154,798,668

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


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