Question

phần tích các số ra thừa số nguyên tố và tìm ước: 32 175 120   2020 

   Help meee

Answer 1

\(32=2^5\)

=>Ư(32)={1;2;4;8;16;32}

\(175=5^2\cdot7\)

=>Ư(175)={1;5;7;25;35;175}

\(120=2^3\cdot3\cdot5\)

=>Ư(120)={1;2;3;4;5;6;8;10;12;15;20;24;30;40;60;120}

Answer 2

Ta có :

32 = 5² => Ư (32) = {\(\pm\)1;\(\pm\)2;\(\pm\)4;\(\pm8\);\(\pm16\);\(\pm32\)}

175 = 5².7 => Ư (175) = {\(\pm1\);\(\pm5\);\(\pm7\);\(\pm25\);\(\pm35\);\(\pm175\)}

120 = 2³.3.5 => Ư (120) = {\(\pm1\);\(\pm2\);\(\pm3\);\(\pm4\);\(\pm5\);\(\pm6\);\(\pm8\)}

2020 = 2².5.101 => Ư (2020) = {\(\pm1\);\(\pm2\);\(\pm4\);\(\pm5\);\(\pm10\);\(\pm20\);\(\pm202\);\(\pm404\);\(\pm505\);\(\pm2020\)}

Answer 3

=>Ư(32)={1;2;4;8;16;32}

=>Ư(175)={1;5;7;25;35;175}

=>Ư(120)={1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 8 ; 10 ; 12 ;  15 ;20 ;24 ;30  ;40 ;60 ;120 }

Answer 4

=>Ư(32)={1;2;4;8;16;32}

=>Ư(175)={1;5;7;25;35;175}

=>Ư(120)={1;2;3;4;5;6;8;10;12;15;20;24;30;40;60;120}