अध्याय 5 · Class 6 UP Board · Free Worksheet PDF

Prime Numbers & Factorization Sums for Class 6 — Free UP Board Worksheet PDF with Answers

Download a free printable prime numbers & factorization worksheet for Class 6 UP Board with 30 practice questions covering prime numbers & factorization concepts, practice problems, and word problems with step-by-step solutions. Includes complete answer key. UP Board-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 Prime Numbers & Factorization Sums for Class 6 — Practice Questions

Here are 8 sample prime numbers & factorization sums from this Class 6 UP Board worksheet. Download the full PDF for all 30 questions with answers.

Q1.निम्नलिखित में से कौन सी संख्या एक अभाज्य संख्या है?
A.8
B.9
C.11
D.15

Difficulty: Easy

Q2.सबसे छोटी भाज्य संख्या कौन सी है?
A.1
B.2
C.3
D.4

Difficulty: Easy

Q3.संख्या 1 के बारे में कौन सा कथन सत्य है?
A.यह एक अभाज्य संख्या है।
B.यह एक भाज्य संख्या है।
C.यह न तो अभाज्य है और न ही भाज्य।
D.यह सबसे छोटी भाज्य संख्या है।

Difficulty: Easy

Q4.निम्नलिखित में से कौन सी संख्या युग्म अभाज्य संख्याएँ हैं (co-prime numbers)?
A.(2, 4)
B.(3, 9)
C.(5, 7)
D.(6, 10)

Difficulty: Easy

Q5.संख्या 20 के सभी गुणनखंड क्या हैं?
A.1, 2, 4, 5, 10, 20
B.1, 2, 4, 10, 20
C.2, 4, 5, 10
D.1, 2, 5, 10, 20

Difficulty: Easy

Q6.संख्या 12 के अभाज्य गुणनखंड क्या हैं?
A.2 × 6
B.3 × 4
C.2 × 2 × 3
D.1 × 12

Difficulty: Easy

Q7.संख्या 18 और 24 का महत्तम समापवर्तक (HCF) क्या है?
A.2
B.3
C.6
D.12

Difficulty: Easy

Q8.संख्या 4 और 6 का लघुत्तम समापवर्त्य (LCM) क्या है?
A.2
B.12
C.18
D.24

Difficulty: Easy

Answer Key — Sample Questions+
Q1:11
Q2:4
Q3:यह न तो अभाज्य है और न ही भाज्य।
Q4:(5, 7)
Q5:1, 2, 4, 5, 10, 20
Q6:2 × 2 × 3
Q7:6
Q8:12

Download the full PDF for all 30 answers with step-by-step solutions.

About This Worksheet

TopicPrime Numbers & Factorization
BoardUP Board
Class6
Total Questions30 (10 Easy + 10 Medium + 10 Hard)
Answer KeyIncluded
PriceFree

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Frequently Asked Questions

Where can I download free prime numbers & factorization sums for Class 6?+
You can download a free Prime Numbers & Factorization PDF worksheet for Class 6 UP Board right here on SparkEd. The worksheet includes 30 practice questions (prime numbers & factorization concepts, practice problems, and word problems with step-by-step solutions) at easy, medium, and hard levels with a complete answer key.
How many prime numbers & factorization questions are in this Class 6 worksheet?+
This SparkEd worksheet for Prime Numbers & Factorization Class 6 contains 30 questions — 10 easy, 10 medium, and 10 hard. The questions cover prime numbers & factorization concepts, practice problems, and word problems with step-by-step solutions. A fresh set is generated daily so students never repeat the same sheet.
Does the Prime Numbers & Factorization 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 prime numbers & factorization worksheet aligned to UP Board syllabus?+
Yes. This worksheet is specifically designed for Class 6 UP Board students and aligned to the 2025-26 UP Board syllabus. All questions follow the UP Board exam pattern and difficulty level.
Can I print this Prime Numbers & Factorization 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.
Does this worksheet include prime numbers & factorization word problems?+
Yes! The worksheet includes both computation-based questions and real-world word problems. Word problems are especially important for UP Board exams, and our worksheet covers a variety of scenarios to build problem-solving skills.

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SparkEd Maths provides free printable maths worksheets for Class 1-10 across CBSE, ICSE, IB, Olympiad, UP Board, Maharashtra SSC, and TN Board. Every worksheet includes an answer key and is aligned to the 2025-26 syllabus.