重慶2013年軍隊(duì)文職考試崗位能力數(shù)字推理基礎(chǔ)知識(shí)
數(shù)字范圍具體數(shù)字統(tǒng)計(jì)100以內(nèi)2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,9725個(gè)質(zhì)數(shù)100~200101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,19921個(gè)質(zhì)數(shù)200~300211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,29316個(gè)質(zhì)數(shù) 五、合數(shù)數(shù)列及相關(guān)數(shù)列 合數(shù):除了1和它本身還有其他約數(shù)的自然數(shù)。 合數(shù)數(shù)列:4,6,8,9,10,12,14,15, 非合數(shù)數(shù)列:1,2,3,5,7,11,13,17, 經(jīng)典數(shù)字分解: 91=713,111=337,119=717,133=719;
注:1既不是質(zhì)數(shù),也不是合數(shù)。 六、對(duì)稱數(shù)列 對(duì)稱數(shù)列:關(guān)于某一項(xiàng)對(duì)稱(相同或相似)的數(shù)列。