1.

Find out the highest number which can exactly divides 45 and 75.

Answer»

Factors of 45 = 1, 3, 5, 9, 15, 45.

Factors of 75 = 1, 3, 5, 15, 25, 75

Common factors of 45 and 75 = 1, 3, 5, 15

Highest common factor in factors = 15

Therefore 15 is the highest number which can exactly divides 45 and 75.



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