Question

The LCM and HCF of two numbers are 12 and 924 respectively. Then the number of such pair is :

• A. 0
• B. 1
• C. 2
• D. 388

Answer 1

Answer:

C. 2

LCM = 924, HCF = 12 We know LCM = HCF × a × b ; a, b are coprimes 924 = 12 × ab ab = 924/12 = 77 = 11 × 7 = 77 × 1 2 pairs of such numbers