🔢 Number System Quiz for IBPS Banking Exams

Master number system concepts with our comprehensive quiz. Practice number theory, divisibility, and mathematical concepts essential for IBPS banking exams.

🎯 Quiz Overview

Quiz Details

• Total Questions: 20
• Time Allotted: 15 minutes
• Difficulty Level: Medium
• Topics Covered: Number system, divisibility, mathematical operations

Key Topics

• Number types and properties
• Divisibility rules
• LCM and HCF
• Prime and composite numbers
• Mathematical operations
• Number patterns

📝 Start the Quiz

📚 Study Material for Number System

Number Types

Natural Numbers

• Definition: Counting numbers starting from 1
• Notation: N = {1, 2, 3, 4, 5, …}
• Properties: Whole numbers, positive integers
• Examples: Account numbers, customer IDs

Whole Numbers

• Definition: Natural numbers including zero
• Notation: W = {0, 1, 2, 3, 4, …}
• Properties: Non-negative integers
• Usage: Balance calculations, transaction counts

Integers

• Definition: Positive and negative whole numbers
• Notation: Z = {…, -3, -2, -1, 0, 1, 2, 3, …}
• Properties: Complete number line
• Application: Profit/loss, debits/credits

Divisibility Rules

Basic Rules

• Divisible by 2: Last digit is even (0, 2, 4, 6, 8)
• Divisible by 3: Sum of digits is divisible by 3
• Divisible by 4: Last two digits form number divisible by 4
• Divisible by 5: Last digit is 0 or 5
• Divisible by 6: Divisible by both 2 and 3

Advanced Rules

• Divisible by 7: Double last digit, subtract from remaining
• Divisible by 8: Last three digits divisible by 8
• Divisible by 9: Sum of digits divisible by 9
• Divisible by 10: Last digit is 0
• Divisible by 11: Difference between sum of odd and even place digits

Prime and Composite Numbers

Prime Numbers

• Definition: Numbers divisible only by 1 and itself
• Examples: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29
• Properties: 2 is the only even prime number
• Usage: Security codes, encryption keys

Composite Numbers

• Definition: Numbers with more than two factors
• Examples: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
• Properties: Can be factored into primes
• Application: Interest calculations, time periods

LCM and HCF

Highest Common Factor (HCF)

• Definition: Greatest number that divides two or more numbers
• Methods: Prime factorization, division method
• Formula: HCF × LCM = Product of numbers
• Application: Finding common denominators

Least Common Multiple (LCM)

• Definition: Smallest number that is multiple of two or more numbers
• Methods: Prime factorization, division method
• Usage: Finding common time periods
• Example: Interest calculation periods

Banking Applications

Account Numbers

• Format: Unique identification numbers
• Validation: Checksum verification
• Security: Prime number factorization
• Generation: Mathematical algorithms

Transaction Codes

• Reference Numbers: Unique identifiers
• Validation: Mathematical checks
• Security: Number theory applications
• Encryption: Prime number usage

🔗 Related Resources

• Percentage Quiz
• Profit Loss Quiz
• Simple Interest Quiz
• Mock Test Series

Ready to test your number system knowledge? Click the Start Quiz button above! 🔢

Last Updated: December 2024 | Questions Updated Regularly | Aligned with IBPS Exam Pattern