What is the greatest number that will divide 62, 78 and 109 leaving remainders 2, 3 and 4 respectively?

Find the ratio of the HCF and the LCM of the numbers 18 and 30.

What is the smallest 5 digit number that is exactly divisible by 72 and 108?

Find whether the number 564872 is divisible by 88.
(use of the test of divisibility rule for 8 and 11 will help!)

Numbers divisible by 4 and 6 are divisible by 24. Verify this statement and support your answer with an example