The square of 28 is divided by the largest number that can exactly divide both 42 and 56. What is the result?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 56.
Factors of 42 = 1, 2, 3, 6, 7, 14, 21, 42
Factors of 56 = 1, 2, 4, 7, 8, 14, 28, 56
Common factors of 42 and 56 are = 1, 2, 7, and 14
The Greatest Common Divisor = 14
According to the question,
Result = (282)/14 = 784/14 = 56