# What is the total number of prime numbers less than 70

1.  17

2.  18

3.  19

4.  20

4

19

Explanation :
No Explanation available for this question

# The total number of even prime numbers is:

1.  0

2.  1

3.  2

4.  None of these

4

1

Explanation :
No Explanation available for this question

# Find the sum of prime numbers lying between 60 and 75.

1.  199

2.  201

3.  211

4.  272

4

272

Explanation :
No Explanation available for this question

# The smallest three-digit prime number is;

1.  103

2.  107

3.  109

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# Which one of the following is a prime number

1.  161

2.  221

3.  373

4.  437

4

373

Explanation :
No Explanation available for this question

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

1.  3

2.  4

3.  5

4.  None of these

4

4

Explanation :
No Explanation available for this question

# The sum of three prime numbers is 100. If one of them exceeds another by 36, then one of the numbers is:

1.  7

2.  29

3.  41

4.  67

4

67

Explanation :
No Explanation available for this question

# There are four prime numbers written in ascending order. The product of the first three is 385 and that of the last three is 1001. The last number is:

1.  11

2.  13

3.  17

4.  19

4

13

Explanation :
No Explanation available for this question

# How many numbers between 400 and 600 begin with or end with a digit of 5

1.  40

2.  100

3.  110

4.  120

4

110

Explanation :
No Explanation available for this question

1.  32

2.  34

3.  35

4.  36

4