How many positive integers less than or equal to 100 have a prime factor that is greater than 4?
+129905 5, 7
10, 11, 13, 14, 15, 17, 19
20, 21, 22, 23, 25, 26, 28, 29
30, 31, 33, 34, 35, 37, 38, 39
40, 41, 42, 43, 44, 45, 46, 47, 49
50, 51, 52, 53, 55, 56, 57, 58, 59
60, 61, 62, 63, 65, 66, 67, 68, 69
70, 71, 73, 74, 75, 76, 77, 78, 78
80, 82, 83, 84, 85, 86, 87, 88, 89
90, 91, 92, 93, 94, 95, 97, 98, 99, 100
I'll let you count them
