The least multiple of 7, which leaves the remainder 4, when divided by any of 6, 9, 15 and 18, is 

The HCF and LCM of two numbers are 21 and 4641 respectively. If one of the numbers lies between 200 and 300, then the two numbers are-

a and b are two whole numbers and c is their HCF, then the LCM of those two numbers is

Find the L.C.M of $$ {6x}{y^{2}z},{8x^{2}{y^{3}z^{2},{12{x^{3}{y^{3}z^{3}}}}}}$$.

Find the HCF of 3341 and 3328.

If the students of a class can be grouped exactly into 6 or 8 or 10, then the minimum number of students in the class must be. 

If the product of three consecutive numbers is 210 then sum of the smaller number is: 

The product of two numbers is 2028 and their HCF is 13. The number of such pair is-