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45 and five's highest common factor is five.
The GCF is 1.
The HCF is 1.
HCF = 15
hcf(5, 15) = 5 lcm(5, 15) = 15.
The GCF is 5.
The hcf of 45 and 40 is 5.
It is: 5
5
The answer is 5.
The HCF is: 5