Respuesta :

SvetkaChem

Answer:

1

Step-by-step explanation:

15 = 1*3*5

64 = 1*8*8 = 1*2*2*2*2*2*2

15 and 64 have only "1" that presents in both 15 and 64.

So, GCF of 15 and 64 is 1.