Respuesta :

Answer:

20

Step-by-step explanation:

This is the Greatest Common Factor (GCF) of 40 and 100:-

40 = 2 * 2 * 2 * 5

100 = 2 * 2 * 5 * 5

Gathering the duplicates, GCF = 2 * 2 * 5 = 20

Answer is 20