Răspuns:
descompunere in nr prime
1.240 = 2³ × 5 × 31
1.750 = 2 × 5³ × 7
2.880 = 2⁶ × 3² × 5
5.250 = 2 × 3 × 5³ × 7
5.760 = 2⁷ × 3² × 5
14.700 = 2² × 3 × 5² × 7²
3.150 = 2 × 3² × 5² × 7
864 = 2⁵ × 3³
descompunere in zeci de mii,mii,sute,zeci,unitati
1.240=1000+200+40
1.750=1000+700+50
2.880=2000+800+80
5.250=5000+200+50
5.760=5000+700+60
14.700=10000+4000+700
3.150=3000+100+50
864=800+60+4
1.728=1000+700+20+8
7.425=7000+400+20+5
14.000=10000+4000
1.001=1000+1
