Yes, the greatest common factor of a pair of numbers can equal one of the numbers if one of the numbers is a factor of the other.
That happens when one of the numbers is a factor of the other.
A prime number
Any pair of prime numbers
210 and 217 is the pair of numbers between 200 and 300 that has the greatest common factor of 7
There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.
They are 21 and 42
15 and 30
6 and 12
How about: 14 and 21
How about: 6 and 9