defence exam Indian Coast Guard Assistant Commandant (GD/CPL) 2025 Test Series Quantitative Aptitude Number System LCM and HCF
If for integers a, b and c, HCF (a, b) = 1 and HCF (a, c) = 1, then which one of the following correct?
1
HCF (a, bc) = 1
2
HCF (a, bc) = a
3
HCF (a, bc) = b
4
none of these