find the GCF

Question

87h^14t^16,6h^2t^27,15h^6t^28

Answer 1

87h^14t^16 = 3*29 h^2 t^16 h^12
6h^2t^27 = 3*2 h^2 t^16 t^11
15h^6t^28 = 3*5 h^2 t^16 h^4 t^12

GCF = 3h^2t^16
LCM = 3*29*2*5 h^14t^28