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Chapteralo:5., Factors And Multiples, Factor : A factor of a number divides lhe numbeo withoul-, leaving a Remainder., 3 Divides 6 without leaving a Rewaindes 3)6 (2, 3 î8 a factor of 6., EX:, Multiple : A multiple of a Number P8 exactly divisible, by lhe Number., Ex :) 9-divisible by 3., '. 9 18 a mutiple of 3., EX:2) 3x5= 15., %3D, Means thoal-, 15 is Divistble by a and 5, -. 15 96 a multiple of 3 end 5., Pime NumberA : Numbeoa ehat have only two factors,, 1 and the nlumber 2tself, are called, poime nlumbers., EX; 2, 3, 5, 7, 11, 13,17,, composite Numbeos: Numbers that have more lhan two, factorn are Called composite Numbers., EX: H, 6,8,9,18, 20,, Twin poimes : painet prime Numbeos which difper by a, OR) The pairs of poime Numbers which hae, only, one composite number between them., EX: (3,5),, 15,7), (11, 13) and (17,19).