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The GCF is 18.
HCF(90, 126) = 18
The LCM is: 126
The Greatest Common Factor of 80, 85, 90: 5
3.
The HCF of 30 and 105 is 15.
The GCF is 3.
The GCF is 6.
The GCF is 21.
The GCF is 14.
The HCF of 4 and 90 is 2.
The GCF is 30.
The HCF is 9
HCF(160, 90) = 10.
The HCF is: 7