If 'a' is a natural number, then the largest number dividing ( a3 - a)

1.	If 'a' is a natural number, then the largest number dividing ( a³ - a) is
A.	4
B.	5
C.	6
D.	7
Answer» D. 7

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If 'a' is a natural number, then the largest number dividing ( a3 - a) is

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If 'a' is a natural number, then the largest number dividing ( a³ - a) is