What does 623 mean on jewerly?

What is the mean of 26 37 42 43? Three times a certain number less 25 equals the number less 15 What is the number? What is 125 percent of 50? Write percent as fraction for 18 percent? What are all the factors of 9520? If a line that contains a side of a polygon also contains a point inside the polygon this polygon is this? A right triangle has a hypotenuse of length 14.14 cm and a leg of length 10 cm. What is the area? What does 180.0 MBTUH mean? What number or numbers is MDXXXIII? How many times does 24 going to 41? How many curved edges a square pyramid has? One ounce of gold is how many grams? Is 169 a sqare number? What percent of 1 34? Which sequence is a geometric sequence having 4 as its first term and 3 as the common ratio? What is difference between Operations Research and Operational Research? If 10y equals 5 what is y? What is a martingale simple random walk? How many diagonals can you draw from one vertex in a polygon with 35 sides? What is bigger 25yd or 75 ft?