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6
prime numbers between 12 and18: 13, & 17
It is: 180
36
3
The GCF is 6.
The LCM of 12 and 18 is 36
The HCF of 12 and 60 is 12
The GCF is 12.
The GCF is 2.
The HCF of 40 & 12 is... 4
The hcf of 12 & 36 is 12
the HCF is 6