Explanation
To determine the number that is least like in the group, we can analyze the numbers and identify any patterns or characteristics.
Looking at the given numbers: 71, 73, 77, 79, we can observe that all of them are prime numbers.
However, the number 77 stands out as an exception because it is not a prime number. It is divisible by 7 and 11.
Therefore, the number that is least like in the group is 77.
Hence, the correct answer is 77.
