154 = 15 x 15 x 15 x 15 = 50625
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10 to the 4th power is 10,000
15 to the 2nd power or 15 squared equals 15 * 15 which equals 225.
== A number to the second power means 'squared,' so it is 15 x 15, which is 225. == 15 to the second power is nothing but 15 squared.152 = (15 * 15) = 225. Therefore 15 to the second power is 225.225
25 to the 2nd power, 5 to the 4th
0.55^15 = 0.000127479497357655364990234375