Q: What are the prime factors of the number 255,154,460?

 A: 2, 5, 11, 61, 19013

Why are those the prime factors of the number 255,154,460?

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 255,154,460

255,154,460
Factor Arrows
2127,577,230
Factor Arrows
263,788,615
Factor Arrows
512,757,723
Factor Arrows
111,159,793
Factor Arrows
6119,013

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, 5, 11, 61, 19013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 61 x 19,013 = 255,154,460

This can also be written as 22 x 51 x 111 x 611 x 19,0131 = 255,154,460

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


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