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A number is divisible by 6 if it passes the rules for 2 and:
A7
B3
C5
D9
Answer & Solution
Correct answer: B. 3
1. Six is the product of two smaller numbers.
2. Both of their rules must hold.
3. They are 2 and 3.
_Source: OpenStax, Contemporary Mathematics, Ch 3 'Real Number Systems and Number Theory'_
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