¿Cuántos números compuestos hay del 1 al 100?

Hay 74 números en total dentro de cien, a saber: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25,26, 27,28,30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50,51,52,54,55,56,57,58, 60,62,63,64,65,66,68,69,70,72,74,75,76,77,78,80,81,82,84,85,86,87,88,90,91, 92,93,94,95,96,98,99,100