Question 1

What is a prime number?

Accepted Answer

A number greater than 1 that is only divisible by 1 and itself.

Answer

A number that is divisible by 2.

Answer

A number that is divisible by 1 and itself.

Answer

A number that is divisible by 3.

Answer

A number that is divisible by 0.

Question 2

Which of the following numbers is a prime number?

Accepted Answer

17

Answer

50

Answer

12

Answer

49

Answer

30

Question 3

What is the largest prime number less than 20?

Accepted Answer

19

Answer

13

Answer

12

Answer

17

Answer

15

Question 4

Which of the following is not a prime number?

Accepted Answer

9

Answer

11

Answer

2

Answer

7

Question 5

What is the smallest prime number?

Accepted Answer

2

Answer

0

Answer

5

Answer

3

Answer

1

Question 6

Which of the following numbers is not a prime number?

Accepted Answer

6

Answer

7

Answer

5

Answer

3

Answer

2

Question 7

Which is the only even prime number?

Accepted Answer

2

Answer

4

Answer

8

Answer

3

Answer

7

Question 8

What is the sum of the first three prime numbers?

Accepted Answer

10

Answer

11

Answer

12

Answer

9

Answer

8

Question 9

What is the prime factorization of 30?

Accepted Answer

2 × 3 × 5

Answer

2 × 2 × 7

Answer

2 × 5 × 5

Answer

3 × 3 × 3

Answer

2 × 2 × 5

Question 10

Normalizer of a group G is a subgroup of G.

Accepted Answer

true

Answer

false

Question 11

If G is a group and p is a prime number also if p ^m+1 / o(G) then G has a subgroup of order p^m

Accepted Answer

false

Answer

true

Question 12

If o(G)=p² then G is abelian.

Accepted Answer

true

Answer

false

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