If you mean 2/3 then 2/3 of 18 = 12 and 18/2 = 9
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The Roman Numeral for 23 is: XXIII Tally Marks: llll llll llll llll lll It is a deficiant number, meaning all the proper factors add up to less than the number itself. (So 1 equals less than 23) The first 5 multiples are: 23, 46, 69, 92, 115 23 is a prime number because only 1x23 will equal 23. Therfore it has no factors besides 1 and 23, and it is not a common multiple of any number. 23 only has one proper factor which is 1 23 is and odd number because it does not divide up by 2 evenly. And it ends with 3 which is an odd number.
The GCF is 1.
100000
Cut it in half.
difference