Here is a list of numbers, ' 1, 3, 9, 24, 30'. Which number is i) prime ii) a square number and iii) a multiple of 4
i) 3 is the only prime number (be careful not to say 1, because 1 is NOT prime)
ii) 9 is the only square number
iii) 24 is the only multiple of 4
AS
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