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1)what is the HCF of 2 consecutive numbe...

1)what is the HCF of 2 consecutive numbers (i)numbers (ii)even nos (iii)odd nos2)HCF of co-prime numbers 4 and 15 was found as follows by factorisation :   and  since there is no common prime factor, so HCF of 4 and 15 is 0. Is the answer correct? If not, what is the correct HCF?

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Q1)a) HCF(2,3)=1
b)HCF(4,6)=2
c)HCF(3,5)=1
Q2)LCM(4)=2*2
LCM(15)=3*5
No, HCF=1.
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