All of the whole numbers between 50 and 75 are composite numbers, except 53, 59, 61, 67, 71, and 73.
61 and 71 are prime numbers the rest are composite numbers
All are composite except 61 and 67. Composite numbers: 60, 62, 63, 64, 65, 66, 68, 69, 70
61 has only two factors, 1 and 61, which means that it is a prime number. There are no other integers that are factors of 61. (A composite number can be divided by numbers besides 1 and itself.)
Since all numbers between 61 and 107 are less than 367, none of them are divisible by 367. 84 is a multiple of 3, 6 and 7 in that range.
All of them except for 61 and 67 which are prime numbers
All of the whole numbers between 50 and 75 are composite numbers, except 53, 59, 61, 67, 71, and 73.
All of them except for 53, 59, 61 and 67 which are prime numbers
51,52,54,55,56,57,58,60,62,63,64,65,66,68,69 are the composite numbers between 50 and 70.
61 and 71 are prime numbers the rest are composite numbers
All of them except for 53 59 61 67 71 73 79 83 89 and 97 which are prime numbers
Only 63 is a composite. 63 = 3 x 3 x 7 The other three numbers (13, 31, 61) are all prime numbers.
All of them except for 53, 59, 61 and 67 which are prime numbers
52, 54, 55, 56, 57, 58
73 and 61 are prime numbers but 54 is a composite number
+/- sqrt(61).
77 is the only composite number.