(14^15)/(2^13*7^14)=
=7^15*2^15/(2^13*7^14)=
=7^(15-14)*2^(15-13)=
=7*4=28
(14^15)/(2^13*7^14)=((7*2)^15)/(2^13*7^14)=(7^15*2^15)/(2^13*7^14)=
2^2*7=28
(14^15)/(2^13*7^14)=
=7^15*2^15/(2^13*7^14)=
=7^(15-14)*2^(15-13)=
=7*4=28
(14^15)/(2^13*7^14)=((7*2)^15)/(2^13*7^14)=(7^15*2^15)/(2^13*7^14)=
2^2*7=28