What is the highest common factor of 2x³ + x² -x -2 and 3x³- 2x² + x - 2 ? 

A six digit number is formatted by repeating a three digit number: for example, 256, 256 or 678, 678 etc. Any number of this form is always exactly divisible by:

Four bells ring at the intervals of 5, 6, 8 and 9 seconds. All the bells ring simultaneously at some time. They will again ring simultaneously after: 

The H.C.F. of two numbers is 8. Which one of the following can never be their L.C.M? 

The greatest number, which when subtracted from 5834, gives a number exactly divisible by each of 20, 28, 32 and 35, is 

A, B and C start running around a circular field having circumference 144 metre at the same time from the same point. Speeds of A, B and C are 6 m/minute, 8 m/minute and 12 m/minute. Find after how much time, they will meet again at the same point for the first time.

The HCF and LCM of two numbers are 12 and 336 respectively. If one of the number is 84, the other is

The least number which when divided by 4, 6, 8, 12 and 16 leaves a remainder of 2 in each case is: