Learn to follow this method. Example: 13^2,500 =2,500 x log(base10) of 13 =2,500 x Log(13) =2,500 x
1.1139433523068367692065051579423=2,784.8583807670919230162628948558. The integer part, or 2,784 is a power of 10. and the fractional part(0.8583807.......etc), you raise it as power of 10:
Or 10^0.8583807670919230162628948558=7.2173998641159254432300299904295 x 10^2,784.