Successor of every even number is:

Which of the following statement is true?

HCF of 120, 144 and 216 is:

H.C.F of two Co-prime numbers is:

Four bells ring at intervals of 6, 7, 8 and 9 seconds respectively. All the bells rings together after _________ seconds.

Prime factors of 140 are:

The greatest number that will divide 37, 50, 123 leaving remainder 1, 2 and 3 respectively is.

The smallest number which when divided by 20, 25, 35 and 40 and leaves remainders as of 14, 19, 29 and 34 respectively is

LCM of 81, 18 and 36 is:

Common factors of 9 and 36 are