## Prime Number Quiz

**Q. Which of the following number is not a prime number ?**

- 33
- 29
- 19
- 23

#### Answer: Option 1 : 33

**Q. 1213 and 1231 are two numbers.**

- First number is prime and the second is composite.
- First number is composite and the second is prime.
- Both the numbers are composite.
- Both the numbers are prime.

#### Answer: Option 4 : Both the numbers are prime.

#### Q. Sum of all the prime numbers between 70 and 100 is :

- 492
- 385
- 421
- 419

#### Answer: Option 1 : 492

Q. How many Prime Numbers lie between 1 to 30 ?

- 8
- 9
- 10
- 11

#### Answer: Option 3 : 10

**Q. Consider the following statements:**

(I) All prime numbers are odd numbers.

(Il) There are only five single digit prime numbers.

(Ill) There are infinitely many prime numbers.

(IV) A prime number has only two factors.

Which of the above statements are true?

- (I) and (IV)
- (II), (III) and (IV)
- (III) and (IV)
- (II) and (IV)

#### Answer: Option 3 : (III) and (IV)

#### Q. **Statement A :** 1 is not a prime number

**Statement B :** 1 is not a composite number

Which of the above statements is/are true?

- Both A & B are true
- Both A & B are not true
- A is true, B is not true
- A is not true, B is true

#### Answer: Option 1 : Both A & B are true

**Q. The sum of all those prime numbers which are less than 31 is**

- 129
- 139
- 132
- 137

#### Answer: Option 1 : 129

**Q. Which is not a prime number?**

- 101
- 103
- 137
- 141

#### Answer: Option 4 : 141

**Q. Which of the following group of number has least prime numbers?**

- From 20 to 40
- From 30 to 50
- From 40 to 60
- From 60 to 80

#### Answer: Option 1 : From 20 to 40

**Q. Next term in the series 4, 9, 25, 49, …**

- 81
- 144
- 100
- 121

#### Answer: Option 4 : 121

Q. The sum of squares of distinct common prime factors of 120, 210 and 330 is

- 34
- 38
- 39
- 46

#### Answer: Option 2 : 38

**Q. Which of the following statements is correct?**

- 1 is a prime number
- 1 is a composite number
- 1 is both a prime and a composite number.
- 1 is neither prime nor a composite number.

#### Answer: Option 4 : 1 is neither prime nor a composite number.

**Q. The number whose only factors are 1 and the number itself is called a/an ________ number.**

- prime
- composite
- odd
- Even