MCQ: Prime Factorisation Class 10 Mathematics Real Numbers CBSE (NCERT)

Added By: Mohit Bhardwaj | Created at: 23 Mar 2025 | Updated on: 23 Mar 2025 | Category: Real Numbers | Status: Published | ID: #20

Check out the MCQ Below:
Q1: What is the prime factorisation of 112? 
  • 2 × 7 × 8 
  • 2⁴ × 7 
  • 2³ × 5 
  • 11 × 2²
Q2: The prime factorisation of 25 is: 
  •  5 × 5 
  •  3 × 7
  •  2 × 2 × 5 
  •  5 × 2
Q3: What are the prime factors of 10648? 
  •  2³ × 19³ 
  •  2⁴ × 7³ 
  •  2³ × 11² 
  •  2² × 23³
Q4: What is the prime factorisation of 15625? 
  •  5⁵ 
  •  5³ × 3² 
  •  25 × 625 
  •  5⁴ × 7
Q5: Which of the following methods is used to find the HCF of two numbers? 
  •  Addition method 
  •  Subtraction method 
  •  Prime factorisation method 
  •  Division method
Q6: What is the prime factorisation of 49? 
  • 7 × 7 
  •  3 × 7 
  •  5 × 5 
  •  2 × 7
Q7: Which of the following is NOT a correct prime factorisation? 
  • 1729 = 7 × 13 × 19 
  • 15625 = 5⁵ 
  • 576 = 2⁶ × 3² 
  • 10648 = 2² × 23³
Q8: What is the sum of the prime numbers in the expression 11 × 13 + 13? 
  •  37 
  •  24 
  •  50 
  •  26
Q9: Which of the following is the prime factorisation of 576? 
  • 2⁶ × 3² 
  • 2⁵ × 3 
  • 2⁴ × 5² 
  • 2³ × 7²
Q10: What is the prime factorisation of 1729? 
  •  7 × 13 × 19 
  •  13 × 19 × 7 
  •  17 × 101 
  •  11 × 13 × 17