Gold stamped with an "18 KGP" mark means that the item in question is not solid gold. It is simply another metal that has been plated with a gold alloy comprised of 18 parts gold to six parts of another metal. These others metals are typically silver or zinc.
Gold plating is used instead of solid gold because a solid piece of gold is exorbitantly expensive to use in any substantial quantity. Alloys are used instead of pure 24K gold for a number of reasons. In some cases, it is to increase the hardness of the metal. In other cases, it is to alter the color and appearance of the gold. White gold, for example, is typically gold mixed with silver, palladium, platinum or nickel.
Learn MoreThe Roman numeral XV is the equivalent of the number 15. In the Roman numeral system, letters represent numerals. The basic letters and the numerals they represent are I equals one, V equals five, X equals 10, L equals 50, C equals 100, D equals 500, and M equals 1,000.
Full Answer >Some math trivia examples include these facts: The middle digit of a three-digit answer to the multiplication of any number by 11 is the sum of the other two digits, or 21 x 11 = 231, while 2 + 1 = 3. The sum of the digits of the result of multiplying a number by 9 is always 9; 2 x 9 = 18, while 1 + 8 = 9.
Full Answer >Roman numerals pertain to any of the symbols used in the Roman numeral system comprising the letters I, V, X, L, C, D and M, with corresponding values of 1, 5, 10, 50, 100, 500 and 1,000, respectively. These base letters are used in combination with each other in writing down numbers. Basic combinations follow certain rules in the additive and subtractive system of Roman numerals.
Full Answer >The number 57 has four factors. These are 1, 3, 19 and 57. Factors of a number are numbers that can be multiplied to equal the given number.
Full Answer >