19
The only common factor is 1.
19
There is NO common factor between '13' & '19' , as both these numbers are prime numbers. However, they do have a common MULTIPLE which is 13 X 19 = 247.
There is no highest common factor for a single number. Common means same or like, where in this case you cannot have an item same to nothing. You need to compare between two numbers. For example, the highest common factor of 19 and 323 (17x19) is 19.
The greatest common factor of 19 and 95 is 19.
Their highest common factor is 1
It is 1 but the highest common factor is 19
There is neither a greatest common factor nor common factors of a single number, such as 19, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 19 are 1 and 19. The prime factor of 19 is 19. Examples: The common factors of 19 and 52 are only 1; the greatest common factor is 1. The common factors of 19 and 95 are 1 and 19; the greatest common factor is 19.
19 is the greatest common factor. 19/19=1, 76/19=4.
The greatest common factor of 19 and 87 is 1.
The GCF is 1.