Quiz Discussion

How many of the following numbers are divisible by 3 but not by 9. 

4320, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276

• 1]

  5

• 2]

  6

• 3]

  7

• 4]

  None Of These

How many of the following numbers are divisible by 132 ? 264, 396, 462, 792, 968, 2178, 5184, 6336

• 1] 4
• 2] 5
• 3] 6
• 4] 7

Which one of the following numbers is exactly divisible by 11?

• 1]

  235641

• 2]

  245642

• 3]

  315624

• 4]

  415624

Find the last unit digit of 55^5 ( Using Euler Theorem)

• 1] 4
• 2] 5
• 3] 3
• 4] 8

The smallest value of n, for which 2n+1 is not a prime number, is

• 1]

  3

• 2]

  4

• 3]

  5

• 4]

  6

• 1] 1951609
• 2] 1981709
• 3] 18362619
• 4] 2031719

The difference between the squares of two consecutive odd integers is always divisible by:

• 1]

  3

• 2]

  6

• 3]

  7

• 4]

  8

Find the number of factors of 9321.

• 1]

  6

• 2]

  8

• 3]

  12

• 4]

  14

What is the unit digit in 27^20?

• 1]

  1

• 2]

  2

• 3]

  3

• 4]

  4

What is the unit digit in {(6374)¹⁷⁹³ x (625)³¹⁷ x (341⁴⁹¹)}?

• 1] 5
• 2] 3
• 3] 2
• 4] 0