Which is largest of the following numbers that divides 17, 42, 93 with remainders 4, 3, 15 respectively?
By option C,
When 17 is divides by 13 then remainder = 4
When 42 is divides by 13 then remainder = 3
When 93 is divides by 13 then remainder = 15
$$\therefore$$ The largest number will be 13.
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