13. (a) Find the greatest number that will divide 56 and 108 exactly.
(b) Find the smallest number that is divisible by 21, 28 and 42.
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13. (a) Find the greatest number that will divide 56 and 108 exactly.
(b) Find the smallest number that is divisible by 21, 28 and 42.
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Answer:
HCF of 56 and 108 = 2 x 2=4
Greatest number is 4
Step-by-step explanation: