Q: What are the prime factors of the number 215,346,465?

 A: 3, 5, 347, 4597

Why are those the prime factors of the number 215,346,465?

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 215,346,465

215,346,465
Factor Arrows
371,782,155
Factor Arrows
323,927,385
Factor Arrows
37,975,795
Factor Arrows
51,595,159
Factor Arrows
3474,597

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, 347, 4597

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 347 x 4,597 = 215,346,465

This can also be written as 33 x 51 x 3471 x 4,5971 = 215,346,465

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


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