\(^{25^{15}}\)=\(\left(5^2\right)^{15}\)=\(5^{30}\)
\(8^{10}.3^{30}=\left(2^3\right)^{^{ }10}.3^{30}=2^{30}.3^{30}=6^{30}\)
Vì \(5^{30}< 6^{30}\)nên \(25^{15}< 8^{10}.3^{30}\)
8^10.3^30= (2^3)^10.3^30 =2^30.3^30 =6^30
25^15 =(5^2)^15 = 5^30
Vì 6^30 > 5^30 => 8^10.3^30 > 25^15
ta có 810.330=810.(33)10=810.2710=(8.27)10=21610=(2162) 5=466565
2515=(253)5=156255
do 46656>15625
=>156255>466565
=>2515<810.330