It can be. For example, 36 is a proper factor of 72 and of 108.
It can be. 18 is a proper factor of 36.
Yes 18 times 2 equals 36 It is a factor, not a [proper] multiple.
36 and 65 do not have a proper common factor.
The greatest integer that will divide evenly into 36 is 36. 18 is 36's greatest proper factor.
2, 3, 4, 6, 9, 12, 18
2, 3, 4, 6, 9, 12, 18
It can be either or both. 36 is a factor of 72. 36 is a multiple of 9. 36 is both a factor and a multiple of 36.
36 is the largest factor of 36,
36 is the highest factor of 36.
4 is a factor of 36 and 36 is a multiple of 4
a proper factor is a factor.
Since the numerator of the fraction is prime, and is not a factor of the denominator, the proper fraction 19/36 cannot be simplified any further.