Q: What are the prime factors of the number 290,983,455?

 A: 3, 5, 7, 307919

Why are those the prime factors of the number 290,983,455?

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 290,983,455

290,983,455
Factor Arrows
396,994,485
Factor Arrows
332,331,495
Factor Arrows
310,777,165
Factor Arrows
52,155,433
Factor Arrows
7307,919

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, 5, 7, 307919

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 7 x 307,919 = 290,983,455

This can also be written as 33 x 51 x 71 x 307,9191 = 290,983,455

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


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