Note the difference between each pair is doubled compared to the previous pair. 5 ; 7 = 2^1 7 ; 11 = 2^2 11 : 19 = 2^3 19 : 35 = 2^4 So 35 : x = 2^5 = 32 So 35 + 32 = 67 .
add 2
11/19 = 0.57895 (to 5 sf)
11
The numbers 5, 7, 11, 13, 17 and 19 are prime.
One rule for this pattern is to add twice the previous value added 4 + 1 = 5 5 + 2×1 = 5 + 2 = 7 7 + 2×2 = 7 + 4 = 11 11 + 2×4 = 11 + 8 = 19 Continuing the next numbers would be: 19 + 2×8 = 19 + 16 = 35 35 + 2×16 = 35 + 32 = 67 ...
35. 5+2^1=5+2=7 7+2^2=7+4=11 11+2^3=11+8=19 19+2^4=19+16=35
Starting with the number 4, applying the rule of multiplying by 2 and then subtracting 3 gives the following sequence: 4, 5, 7, 11, 19, 35. This pattern can be calculated as follows: 4 x 2 - 3 = 5, 5 x 2 - 3 = 7, 7 x 2 - 3 = 11, 11 x 2 - 3 = 19, 19 x 2 - 3 = 35.
Note the difference between each pair is doubled compared to the previous pair. 5 ; 7 = 2^1 7 ; 11 = 2^2 11 : 19 = 2^3 19 : 35 = 2^4 So 35 : x = 2^5 = 32 So 35 + 32 = 67 .
44/25 or 1 19/25 2 1/5= 11/5 1 1/4= 5/4 switch the second one so is 4/5 11/5 divided by 4/5 11*4= 44 5*5= 25 44/25= 1 19/25
add 2
( 8 + 11/20 ) - ( 3 + 3/5 ) or 8 11/20 - 3 12/20 or 7 31/20 - 3 12/20 4 19/20 4 19/20 or 4 and 19 over 20
Después de ver todos los análisis y no entenderlos, he llegado a la siguiente conclusión y no me parece descabellada: 1ra serie: 4 5 7 11 19 35 67 relación: +1+2 +4 +8 +16 +32 nexo de la relación: multiplicar por 2, o sea, 21=2/22=4/42=8/82=16/16*2=32 por tanto sería: 4+1=5 5+2=7 7+4=11 11+8=19 19+16=35 35+32=67 Espero se entienda. Saludos Nilda
11
The factors of 7,315 are 5,7,11 and 19. 5 * 7 * 11 * 19 = 7,315. For all factors besides the prime factors, simply multiply each combination of prime factors by each other. 5*7=35 5*11=55 5*19=95 7*11=77 7*19=133 11*19=209 5*7*11=385 5*7*19=665 5*11*19=1,045 7*11*19=1,463 Finally, 1 and 7,315 are also factors of 7,315.
look for a pattern, in this case we seem to be taking 5 then adding 6. so: 9 - 5 = 4 4 + 6 = 10 10 - 5 = 5 5 + 6 = 11 11 - 5 = 6 6 + 6 =12
11/19 = 0.57895 (to 5 sf)