28! = 3.048883446 * 10^29
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28
= 406
(3.048883446 * 10^29) / 406 (11) = 6.170984463
6.170984463 / pi = 1.964285362
2 - 1.964285362 = 0.035714638
1 / 0.035714638 = 27.99972381
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