一個(gè)電話號(hào)碼是0832-A B C D E F G.提示:A-既是質(zhì)數(shù),又是偶數(shù);B-是最小自然數(shù);C-是合數(shù)中最小的奇數(shù);D-它既是4的倍數(shù),又是4的因數(shù);E-它的所有因數(shù)是1,2,3,6;F-是質(zhì)數(shù)中最小的奇數(shù);G-既不是質(zhì)數(shù)也不是合數(shù).這個(gè)電話號(hào)碼是________.
2094631
分析:A-既是質(zhì)數(shù),又是偶數(shù),說(shuō)明A是2;B-是最小自然數(shù),說(shuō)明B是0;C-是合數(shù)中最小的奇數(shù),說(shuō)明C是9;D-它既是4的倍數(shù),又是4的因數(shù),說(shuō)明D是4,E-它的所有因數(shù)是1,2,3,6,說(shuō)明E是6;F-是質(zhì)數(shù)中最小的奇數(shù),說(shuō)明F是3;G-既不是質(zhì)數(shù)也不是合數(shù)說(shuō)明G是1.
解答:因?yàn)锳-既是質(zhì)數(shù),又是偶數(shù),說(shuō)明A是2;B-是最小自然數(shù),說(shuō)明B是0;C-是合數(shù)中最小的奇數(shù),說(shuō)明C是9;D-它既是4的倍數(shù),又是4的因數(shù),說(shuō)明D是4;E-它的所有因數(shù)是1,2,3,6,說(shuō)明E是6;F-是質(zhì)數(shù)中最小的奇數(shù),說(shuō)明F是3;G-既不是質(zhì)數(shù)也不是合數(shù)說(shuō)明G是1.
所以這個(gè)電話號(hào)碼為:2094631;
故答案為:2094631.
點(diǎn)評(píng):奇數(shù)與偶數(shù)是以能否是2的倍數(shù)、質(zhì)數(shù)與合數(shù)是以因數(shù)的個(gè)數(shù)來(lái)區(qū)分的.