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The sum of the digits of a large number is 81. Using the divisibility rules, by which number or numbers is that large number divisible? A. Only 3 B. 3 and 6 C. 3 and 9 D. 3, 6, and 9
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Dec 25, 2016
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The sum of the digits of a large number is 81. Using the divisibility rules, by which number or numbers is that large number divisible?
A. Only 3
B. 3 and 6
C. 3 and 9
D. 3, 6, and 9
Mathematics
middle-school
NateJ
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Answer:
C. 3 and 9
Explanation:
81 divide by 3 = 27
81 divide by 9 = 9
Joney
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Dec 27, 2016
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Joney
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The sum of the digits is 81
sum the digits again and get 9
Therefore, as 9 is only divisible by 9 and 3 the answer is 'C'
OlDor
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Dec 31, 2016
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OlDor
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