The following numbers fall in a group. Which one does not belong to the group 53, 63, 73, 83?
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Option 2 : 63
Prime number: A number which is divisible by ‘1’ and itself is called a prime number.
53, 73 and 83 are prime numbers.
Whereas,
‘63’ is not a prime number.
Hence, “63” does not belong to the group.
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