Best Answer

To find the greatest common factor of two numbers, they first need to be split into their prime factors. For 85 and 51 this is done as follows:

51 = 17x3

85 = 17x5

The next step is to identify any common factors. In this case, both numbers have 17 as a prime factor. This is the only common factor, and thus the greatest common factor of 85 and 51 is 17.

User Avatar

Wiki User

โˆ™ 2011-09-25 19:41:26
This answer is:
User Avatar
Study guides


20 cards

A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

See all cards
1175 Reviews

Add your answer:

Earn +20 pts
Q: What is the greatest common factor of 85 and 51?
Write your answer...
Still have questions?
magnify glass
People also asked