Who inaugurated the Global Conclave on Plastic Recycling

The least number which when divided by 9, 12, 15, 18, and 21 leaves the same remainder 7 in each case, is:

Determine the difference between the LCM and HCF of 18, 24, and 36.

The ratio of two numbers is 6:11 and their LCM is 264. The numbers are:

The greatest number, which when subtracted from 5462, gives a number exactly divisible by each of 25, 30, 32 and 40, is:

Ratio of two numbers 10:21 and their LCM is 2520. Find the sum of the given two numbers.

The least number which when divided by 10, 12, 15 and 20 leave zero remainder in each case and when divided by 24 leaves a remainder of 12 is:

The HCF of 450 and 740 is 150, their LCM is:

The LCM of two positive integers is 660 and their HCF is 12. If one of the numbers is 132, what is the other number?

Determine the total count of prime factors in the product: 21⁷ x 19⁷ x 10⁷

If the highest common factor of two numbers is 20, then which of the following may be the least common multiple of the numbers?