8,999,999,999,999,999,999,999,999,999,999,999,999,999,999,991
(8 quattuordecillion, 999 tredecillion, 999 duodecillion, 999 undecillion, 999 decillion, 999 nonillion, 999 octillion, 999 septillion, 999 sextillion, 999 quintillion, 999 quadrillion, 999 trillion, 999 billion, 999 million, 999 thousand and 991)
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Oh, dude, that's a big number. Okay, so when you multiply 999999999999999999999999999999999999999999999 by 9, you get... wait for it... 8999999999999999999999999999999999999999999991. Like, whoa, that's a lot of nines!
54 That is 9*6 not 9*9*9*9*9*9 which is 96 = 531441
9 x 9 x 9 x 9 x 9, or 9^5, is equal to 59049.
1 times 81 3 times 27 9 times 9
9 times 9 times 9 equals 729
The answer is 9 times 9 + x = 90 9+881 =90 81/9 =9 So 90 is greater than 9 by 9 times.