Ascertain the prime factors of both numbers :-
660 = 2 x 2 x 3 x 5 x 11
1155 = 3 x 5 x 7 x 11
The only factors (other than 1) that both numbers have in common are 3, 5 and 11.
The greatest common factor is therefore 3 x 5 x 11 = 165
165 is the GCF of 660 and 1155
The GCF is 165.
It is 5
The greatest common factor of 315 and 660 is 15.
The factors of 135 are: 1, 3, 5, 9, 15, 27, 45, 135The factors of 165 are: 1, 3, 5, 11, 15, 33, 55, 165The common factors are: 1, 3, 5, 15The Greatest Common Factor: GCF = 15
The factors of 316 are:1, 2, 4, 79, 158, 316The factors of 660 are:1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660The common factors are: 1, 2, 4The Greatest Common Factor (GCF) is: 4
Factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.Factors of 660: 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660.GCF (72, 660) = 12
The least common multiple of the numbers 5, 12 and 11 is 660.
The GCF is: 165
16.5*2=33
It is: 165
Since 220 is a factor of 660, it is automatically the GCF.
The Greatest Common Factor (GCF) is: 60
The greatest common factor of 315 and 660 is 15.
The GCF is: 3
The GCF is 11.
The GCF is 60.
1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660 1,3,5,7,11,15,21,33,35,55,77,105,165,231,385,1155 Common set: 1,3,5,11,33,55,165
You need 2 or more numbers to perform GCF
The GCF is 44.