A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 9 are wrong and the other digits are correct, then the correct answer would be:
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9
Yepppy... gotcha... the correct answer is 555681, is it?
987*563=555681
987*563=555681
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3
find the prime factors of 987
those are 3, 7 and 47
check divisibilty with options
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