100,000 in Roman numerals, how to write?

100,000 = (C)
99,999 = ? ... 100,001 = ?

In Roman numerals online converter

Latest conversions of numbers to Roman numerals

100,000 = (C) Oct 17 05:42 UTC (GMT)
18,120 = (X)(V)MMMCXX Oct 17 05:42 UTC (GMT)
195,887 = (C)(X)(C)(V)DCCCLXXXVII Oct 17 05:42 UTC (GMT)
18,117 = (X)(V)MMMCXVII Oct 17 05:42 UTC (GMT)
181,112 = (C)(L)(X)(X)(X)MCXII Oct 17 05:42 UTC (GMT)
181,112 = (C)(L)(X)(X)(X)MCXII Oct 17 05:42 UTC (GMT)
1,999 = MCMXCIX Oct 17 05:42 UTC (GMT)
181,112 = (C)(L)(X)(X)(X)MCXII Oct 17 05:42 UTC (GMT)
181,112 = (C)(L)(X)(X)(X)MCXII Oct 17 05:42 UTC (GMT)
181,060 = (C)(L)(X)(X)(X)MLX Oct 17 05:42 UTC (GMT)
6,474 = (V)MCDLXXIV Oct 17 05:42 UTC (GMT)
7,007 = (V)MMVII Oct 17 05:42 UTC (GMT)
180,998 = (C)(L)(X)(X)(X)CMXCVIII Oct 17 05:42 UTC (GMT)
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Roman numerals reading rules, summary: