The prime numbers between 42 and 78 are 43, 47, 53, 59, 61, 67, 71, and 73.
210
That's an infinite list that includes 30, 42 and 66.
30, 42, 66, 70, 78
30, 42, 66, 70, 78
30 and 42
The prime numbers between 30 and 50 are 31, 37, 42, 43 and 47.
The prime numbers between 42 and 78 are 43, 47, 53, 59, 61, 67, 71, and 73.
30, 42 and 70
43 and 47.
210
30, 42, and 70
That's an infinite list that includes 30, 42 and 66.
They are: 37 and 41
30, 42, 66, 70, 78
The prime factors of 42 are: 2,3,7
The number midway between two numbers is the average of those two numbers. In this case, the average of 42 and 18 is (42 + 18) / 2 = 60 / 2 = 30. Therefore, the number midway between 42 and 18 is 30.