Question

Me ajudem gente por favor com o número 3

Answer 1

Letra a eu sei mas espero q ajude

De 20:1,2,4,5,10,20

18:1,2,3,6,9,18

16:1,2,4,8,16

30:1,2,3,5,6,10,15,30

Answer 2

20, 18 , 16 e 30

20 = divide por (1,2,,4,5,10,20)
18 = divide por (1,2,3,6,9,18)
16 = divide por (1,2,4,8,16)
30 = divide por (1,2,3,5,6,10,15,30)

b)90 = 2. 3. 3. 5
   21 = 3.7
   35 = 5.7
   100 = 2.2.5.5

c) 13 = 1,13,26,39,52,65,78,91,104,117
     7 = 1,7,14,21,28,35,42,49,56,63
    20 = 1, 20, 40 ,60 ,80, 100, 120, 140 ,160 , 180
    9 = 1,9,18,27,36,45,54,63,72,81
    11 = 1, 11 ,22 ,33 ,44 ,55 ,66 ,77 ,88 ,99