It is: 9
Chat with our AI personalities
Prime factor each number. 18=2x3x3 45=3x3x5 72=2x2x2x3x3 Use each prime factor the number of times it was used the MOST in any one of the numbers. 2x2x2x3x3x5=360 The least common denominator of 18, 45, and 72 is 360.
The greatest common factor is 18.
There is only one greatest common factor which for 60 and 72 is 12.
The Greatest Common Factor (GCF) is: 9
The GCF of 40 and 72 is 8.