Well, honey, the greatest common factor of 19 and 16 is 1. They don't have any other factors in common besides that lonely little number 1. So, there you have it - the not-so-exciting but technically correct answer.
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The greatest common factor (GCF) of 19 and 16 is 1. This is because 19 and 16 do not share any common factors other than 1. In other words, 1 is the largest integer that divides both 19 and 16 without leaving a remainder.
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.
The greatest common factor of 16 and 19 is 1
19 is the greatest common factor. 19/19=1, 76/19=4.
19
The greatest common factor of 874 , 1995 = 19
The greatest common factor is 19
You need at least two numbers to find a greatest COMMONFactor.The greatest COMMON factor for 171 will depend upon the other number(s) with which it has COMMON factors, but it WILL be one of the factors of 171, namely one of: 1, 3, 9, 19, 57, 171