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-

The least number which when divided by 4, 6, 8 and 9 leave zero remainders in each case and when divided by 13 leaves a remainder of 7 is: 

The ratio of two numbers is 2: 3 and their L.C.M is 48.  What is the number?

The HCF of two numbers is 4 and the two other factors of LCM are 5 and 7. Find the smaller of the two numbers.

What is the greatest common factor of 2³ × 7² and 2⁵ × 3¹?

Three men step off together from the same spot. Their steps measure 63 cm, 70 cm and 77 cm respectively. The minimum distance each should cover so that all can cover the distance in complete steps is 

Find the HCF of 60, 148 and 382.

Find the LCM of x and (x+3).