Chapter Exam

Chapter-5 Prime Time — Online MCQ Test

Q: What is a factor of 24?

Answer: A. 6 — 6 divides 24 evenly (24 ÷ 6 = 4), making it a factor of 24.

Q: Which of the following is a multiple of 5?

Answer: B. 35 — 35 = 5 × 7, so 35 is a multiple of 5.

Q: If a number is divisible by 10, it must also be divisible by ___.

Answer: B. 2 and 5 — Numbers divisible by 10 end in 0, making them divisible by both 2 and 5 (factors of 10).

Q: If LCM(a, b) = 24 and HCF(a, b) = 4, and one number is 8, what is the other number?

Answer: C. 12 — Using the formula: a × b = HCF × LCM, we get 8 × b = 4 × 24, so b = 12.

Q: Among 91, 93, 95, and 97, which is a prime number?

Answer: D. 97 — 91 = 7 × 13, 93 = 3 × 31, 95 = 5 × 19, but 97 has no factors other than 1 and 97.

MATHS · CLASS 6th · Andhra State Board

Practice Chapter-5 Prime Time with a free chapter-wise online MCQ test for Andhra State Board CLASS 6th MATHS. This chapter covers: factors - multiples - prime numbers - composite numbers - HCF - LCM - divisibility rules - twin primes. AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

20m

Time Limit

Attempts Left

10 random questions from this chapter (mixed difficulty)
Questions you've seen before won't repeat until the pool resets
You have 20 minutes — exam auto-submits when time is up
Maximum 3 attempts per chapter
Results and explanations shown immediately after submission

New here? Register free — includes 3 free chapter exams.

Chapter-5 Prime Time — Important Questions & Answers (FAQ)

Frequently asked questions from Andhra State Board CLASS 6th MATHS — Chapter-5 Prime Time, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is a factor of 24?

A. 6 ✓
B. 7
C. 5
D. 9

Answer: A. 6
6 divides 24 evenly (24 ÷ 6 = 4), making it a factor of 24.

Which of the following is a multiple of 5?

A. 23
B. 35 ✓
C. 17
D. 41

Answer: B. 35
35 = 5 × 7, so 35 is a multiple of 5.

If a number is divisible by 10, it must also be divisible by ___.

A. 3 and 7
B. 2 and 5 ✓
C. 4 and 6
D. 8 and 9

Answer: B. 2 and 5
Numbers divisible by 10 end in 0, making them divisible by both 2 and 5 (factors of 10).

If LCM(a, b) = 24 and HCF(a, b) = 4, and one number is 8, what is the other number?

A. 6
B. 10
C. 12 ✓
D. 16

Answer: C. 12
Using the formula: a × b = HCF × LCM, we get 8 × b = 4 × 24, so b = 12.

Among 91, 93, 95, and 97, which is a prime number?

A. 91
B. 93
C. 95
D. 97 ✓

Answer: D. 97
91 = 7 × 13, 93 = 3 × 31, 95 = 5 × 19, but 97 has no factors other than 1 and 97.

Choose Your Plan & Start Practising

All plans cover every subject and chapter of your registered grade.

Free

₹0

3 exams · 1 year

Start Free →

Active

₹350

12 exams · 1 year

Get Active →

Pro

₹899

Unlimited exams · 1 year

Get Pro →

Compare all plans in detail →