what is the greatest common multiple of 45,81,63
The greatest common multiple is 9.
45=3 X 3 X 5
81=3^4
63=3 X 3 X 7
GCM=3^4 X 5 X 7=2,835 This is the Greatest Common Multiple
There is no "greatest common multiple"
If you want the greatest common factor - GCF - "Guest 1" has the correct answer of 9
If you want the least common multiple - LCM - "Guest 2" has the correct answer of 2835
