1+3+5+7+9.................84954645645124354569884653254325=?

= (1+84954645645124354569884653254325) / 2 x (1+84954645645124354569884653254325) / 2

= [ (1+84954645645124354569884653254325) / 2 ] square

這樣大的數, 其實又有什麼意義呢 ?

Very true, who would be calculating a 33 digit number, without units without specific notations.... its rather pointless...

the square of (1+84954645645124354569884653254325)/2=7217291816688646462862789675549..........6

= (1+84954645645124354569884653254325) / 2 x (1+84954645645124354569884653254325) / 2

= [ (1+84954645645124354569884653254325) / 2 ]