Quiz Discussion

Find the number of factors of 9321.

• 1]

  6

• 2]

  8

• 3]

  12

• 4]

  14

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

106 X 106 - 94 X 94

• 1] 9440
• 2] 9600
• 3] 9640
• 4] 9755

Find the sum to 200 terms of the series 1 + 4 + 6 + 5 + 11 + 6 + ....

• 1]

  29800

• 2]

  30200

• 3]

  31600

• 4]

  28480

How many prime numbers exist in 6⁷ x 35³ x 11¹⁰?

• 1]

  23

• 2]

  27

• 3]

  30

• 4]

  29

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

• 1]

  3

• 2]

  4

• 3]

  5

• 4]

  6

The smallest 3 digit prime number is:

• 1]

  101

• 2]

  103

• 3]

  109

• 4]

  113

The sum of first five prime numbers is:

• 1]

  11

• 2]

  18

• 3]

  26

• 4]

  28

The digit in unit’s place of the product 71 × 72 × ..... × 79 is

• 1]

  2

• 2]

  0

• 3]

  6

• 4]

  4

If n is a natural number, then (6n² + 6n) is always divisible by:

• 1]

  6 only

• 2]

  12 only

• 3]

  6 and 12 both

• 4]

  by 18 only