The numbers are perfect cubes, so d will also be a perfect cube.
125 (the sequence is successive numbers cubed)
64
125 13 23 43 53...
327
5.
These are perfect cubes (of 1, 2 and 3) so the next two are 64 and 125
125 is equal to 125.No other number is equal to 125.
13 ...23 ...33 ...43 ...53=125■
125 (the sequence is successive numbers cubed)
64
125 - x.
64 should be in between 27 and 125.
729
the next number in the sequence 1 5 25 125 is 625
1 x 125, 5 x 25
125 the number cuts in half everytime
343.