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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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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

User NateJ
by
7.9k points

2 Answers

3 votes

Answer:

C. 3 and 9

Explanation:

81 divide by 3 = 27

81 divide by 9 = 9

User Joney
by
8.3k points
5 votes
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'

User OlDor
by
8.4k points
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