Question

a series is one term missing 8,21,60,177,?​

Answer 1

Answer:528

Step-by-step explanation:

21-8=13*1=13*1

60-21=39=13*3                   (1*3=3)

177-60=117=13*9                (3*3=9)

528-177=351=13*27           (9*3=27)