Question 5 of 9beginner🔧 ApplyShort Answer2 marks

What are the common factors of 12 and 13?

Correct Answer

Factors of 12: 1, 2, 3, 4, 6, 12

Factors of 13: 1, 13 (since 13 is a prime number)

Common factor: 1

∴ The only common factor of 12 and 13 is 1.

Exercise: Let Us Do | Q: 5 | (Page Page 5)
For More Understanding

Explanation

The chapter explains that 13 is a prime number with factors 1 and 13 only. The factors of 12 are 1, 2, 3, 4, 6, and 12. The only common factor between 12 and 13 is 1. The chapter also notes that 'The number itself and 1 are always factors of any number.'

Solution Steps

  1. List the factors of 12: 1, 2, 3, 4, 6, 12

  2. List the factors of 13: 1, 13 (since 13 is a prime number)

  3. Identify the common factor: 1

  4. Conclude that 1 is the only common factor

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