Answers

2014-09-08T11:53:54+08:00
The answer is 999,999. So that if you add 1, 999,999 +1=1,000,000, it will be a seven-digit number. :-)
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2014-09-08T19:21:34+08:00
999,999 then add 1, it will be 1,000,000 which is a 7-digit number
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