Answer:
6
Step-by-step explanation:
Let n be unknown divisor and a be the same remainder, then

Subtract a from all equalities:

Subtract them:

The greatest number is 6. When you divide numbers 63, 45, 69 by 6, you'll get remainders 3, 3, 3, respectively.
$48.75
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Standard form of given question :8.5016012×10^7