The prime factorisation of 25 is:

The prime factorisation of 25 is: 
  •  5 × 5 
  •  3 × 7
  •  2 × 2 × 5 
  •  5 × 2
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Class X Maths Real Numbers

Answers 1

Answer: 1) 5 × 5
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Similar Questions

1 Find the LCM and HCF of the following integers by applying the prime factorisation method. (i) 12, 15 and 21 (ii) 17, 23 and 29 (iii) 8, 9 and 25 2 Express each number as a product of its prime factors: (i) 140 (ii) 156 (iii) 3825 (iv) 5005 (v) 7429 3 What is the sum of the prime numbers in the expression 11 × 13 + 13? 4 Express each number as a product of its prime factors: 140, 156, 3825, 5005, 7429 5 Which number has the following prime factors: $2^4 × 3 × 7$?