Explore topic-wise MCQs in Discrete Mathematics.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Discrete Mathematics knowledge and support exam preparation. Choose a topic below to get started.

1.

THE_LCM_OF_3_AND_21_IS__________IF_GCD(3,21)=3.?$

A. 3
B. 12
C. 21
D. 42
Answer» D. 42
2.

The least common multiple of 41.42 and 42.41 is ____________

A. 42
B. 41
C. 84
D. 41.42
Answer» E.
3.

The greatest common divisor of 0 and 5 is __________?

A. 0
B. 1
C. 2
D. 5
Answer» C. 2
4.

The greatest common divisor of 313.517 and 212.35 is __________

A. 3<sup>0</sup>
B. 3<sup>1</sup>
C. 3<sup>3</sup>
D. 3<sup>5</sup>
Answer» E.
5.

Is 7, 8, 9, 11 are pairwise relatively prime. Is it True or False?

A. True
B. False
Answer» B. False
6.

Which positive integer less than 21 are relatively prime to 21?

A. 18
B. 19
C. 21
D. 24
Answer» C. 21
7.

The prime factorization of 1001 is __________

A. 7<sup>3</sup>.11.13
B. 7<sup>2</sup>.11.13
C. 7.11.13
D. 7.11<sup>3</sup>.13
Answer» D. 7.11<sup>3</sup>.13
8.

Out of the following which of these integers is not prime?

A. 21
B. 35
C. 71
D. 101
Answer» C. 71
9.

Out of following which one is Mersenne Primes?

A. 3
B. 7
C. 2047
D. 31
Answer» D. 31
10.

The prime factorization of 7007 is __________

A. 7<sup>3</sup>.11.13
B. 7<sup>2</sup>.11.13
C. 7.11.13
D. 7.11<sup>3</sup>.13
Answer» C. 7.11.13