1.

Find out the highest common factors of 15, 27 and 36.

Answer»

Factors of 15 = 1, 3, 5, 15

Factors of 27 = 1, 3, 9, 27

Factors of 36 = 1, 2, 3, 4, 6, 12, 18, 36

Common factors of 15, 27 and 36 = 1, 3

Therefore, highest common factor of 15, 27 and 36 = 3



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