Can 5 and 30 be the HCf and LCM of two numbers? Give reason for your answer. Share with your friends Share 0 Rajan Bhateja answered this Solution : Yes, 5 and 30 can be the HCF and LCM of two numbers as we know that HCF of two numbers must be the factor of LCM of two numbers.Now, we know that 5 is the factor of 30. So 5 and 30 can be the HCF and LCM of two numbers respectively. 1 View Full Answer