What is the average of all positive integers that have four digits when written in base 3, but two digits when written in base 5? Write your answer in base 10.
+204 I don't think there are any 4 digit3 that translate to 2 digit5
Smallest 4 digit base 3 is 1000 which is 2710
Largest base 5 two digit is 445 = 2410
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