Chapter 2 · Class 6 ICSE · Free Worksheet PDF

HCF LCM Sums for Class 6 — Free ICSE Worksheet PDF with Answers

Download a free printable hcf & lcm worksheet for Class 6 ICSE with 30 practice questions covering HCF, LCM, prime factorisation, factors, multiples, and word problems using HCF and LCM. Includes complete answer key. ICSE-aligned for the 2025-26 syllabus.

Last updated: 5 May 2026

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30 questions (Easy + Medium + Hard) with answer key. Fresh set generated daily.

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Sample HCF & LCM Sums for Class 6 — Practice Questions

Here are 8 sample hcf & lcm sums from this Class 6 ICSE worksheet. Download the full PDF for all 30 questions with answers.

Q1.Which of the following is a prime number?
A.15
B.21
C.29
D.35

Difficulty: Easy

Q2.Find the prime factorization of 36.
A.2² × 3²
B.2³ × 3
C.4 × 9
D.6 × 6

Difficulty: Easy

Q3.Find the HCF of 12 and 18.
A.2
B.3
C.6
D.12

Difficulty: Easy

Q4.Find the LCM of 4 and 6.
A.2
B.12
C.24
D.6

Difficulty: Easy

Q5.Is 1 a prime number?
A.Yes
B.No
C.Sometimes
D.Only for odd numbers

Difficulty: Easy

Q6.Which of the following is a composite number?
A.7
B.11
C.15
D.23

Difficulty: Easy

Q7.Find the HCF of 8 and 12 using the prime factorization method.
A.2
B.4
C.8
D.12

Difficulty: Easy

Q8.Find the LCM of 5 and 7.
A.12
B.35
C.1
D.70

Difficulty: Easy

Answer Key — Sample Questions+
Q1:29
Q2:2² × 3²
Q3:6
Q4:12
Q5:No
Q6:15
Q7:4
Q8:35

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About This Worksheet

TopicHCF & LCM
BoardICSE
Class6
Total Questions30 (10 Easy + 10 Medium + 10 Hard)
Answer KeyIncluded
PriceFree

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Frequently Asked Questions

Where can I download free hcf & lcm sums for Class 6?+
You can download a free HCF & LCM PDF worksheet for Class 6 ICSE right here on SparkEd. The worksheet includes 30 practice questions (HCF, LCM, prime factorisation, factors, multiples, and word problems using HCF and LCM) at easy, medium, and hard levels with a complete answer key.
How many hcf & lcm questions are in this Class 6 worksheet?+
This SparkEd worksheet for HCF & LCM Class 6 contains 30 questions — 10 easy, 10 medium, and 10 hard. The questions cover HCF, LCM, prime factorisation, factors, multiples, and word problems using HCF and LCM. A fresh set is generated daily so students never repeat the same sheet.
Does the HCF & LCM worksheet for Class 6 include answers?+
Yes! Every SparkEd worksheet comes with a complete answer key. Students can self-check their work after completing the sheet. The PDF is free to download and print.
Is this hcf & lcm worksheet aligned to ICSE syllabus?+
Yes. This worksheet is specifically designed for Class 6 ICSE students and aligned to the 2025-26 ICSE syllabus. All questions follow the ICSE exam pattern and difficulty level.
Can I print this HCF & LCM worksheet?+
Absolutely! The worksheet downloads as an A4-size PDF that is ready to print. It includes the questions, space for working, and a separate answer key — perfect for classroom use or home practice.
How is this worksheet different from NCERT textbook exercises?+
SparkEd worksheets go beyond NCERT exercises by providing 30 questions at 3 progressive difficulty levels. Level 1 (Easy) builds confidence, Level 2 (Medium) tests application, and Level 3 (Hard) prepares for exams. Each worksheet includes word problems and conceptual questions, not just computation.

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