Which are the composite numbers from 40 to 80?

40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64 ,65 ,66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80

• The prime numbers between 40 and 80 are: 41, 43, 47, 53, 59, 61, 67, 71, 73, 79 so the composite numbers are the rest and should be listed above.