I must say, this is a mess.
-- If you want the least something, then you only get one of them. If there were two leasts,
then you would immediately ask which least is less than the other least.
-- "Common" means "same for both". There's nothing 'common' about just one thing,
and just one number has no 'common' factors.
-- The least common factor of any group of two or more numbers is always ' 1 '.
There cannot be a least common factor of just one number. To be common there need to be at least two numbers.
There cannot be a least common factor of just one number. To be common there need to be at least two numbers.
The number one goes into every number making the the least (lowest) common factor.
There cannot be a least common factor of just one number. To be common there need to be at least two numbers.
The least common factor of any set of integers is 1.
There cannot be a common factor of just one number. To be common there need to be at least two numbers.
You can start by listing out each number's factors. Then, when you find at least one common factor, that is your answer!
The number one is a factor of every number.
None. The least common factor is defined only for two or more numbers: one number cannot have a LCF. In any case, the least factor of any number is 1. So 91 cannot be a least common factor of any number since 1 is a factor and 1 is less than 91.
The least common factor of any set of numbers is 1.
The greatest common factor of two (or more) integers is the biggest whole number that divides into each one of them. The least common factor is the smallest whole number that divides into each one of them and must be 1. Very possibly, you meant the least common multiple, however?
There cannot be a common factor of just one number. To be common there need to be at least two numbers.