Q: What are the prime factors of the number 290,830,672?

 A: 2, 11, 43, 83, 463

Why are those the prime factors of the number 290,830,672?

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 290,830,672

290,830,672
Factor Arrows
2145,415,336
Factor Arrows
272,707,668
Factor Arrows
236,353,834
Factor Arrows
218,176,917
Factor Arrows
111,652,447
Factor Arrows
4338,429
Factor Arrows
83463

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, 11, 43, 83, 463

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 43 x 83 x 463 = 290,830,672

This can also be written as 24 x 111 x 431 x 831 x 4631 = 290,830,672

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


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