The units digit of every prime number (other than 2 and 5) must be nec – McqOptions

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1.	The units digit of every prime number (other than 2 and 5) must be necessarily
A.	1, 3 or 5
B.	1, 3, 7 or 9
C.	7 or 9
D.	1 or 7
Answer» C. 7 or 9

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