27-x-125-216=0
How Do You Work Out Missing Number In Sequence 1 - 8 - 27 - ? - 125 - 216
64
1. Recognize that each of the numbers on the list is a cube.
2. Recognize that they are, successively, cubes of 1, 2, 3, ?, 5, 6
3. Speculate that the missing number is the cube of 4, which is 64.
2. Recognize that they are, successively, cubes of 1, 2, 3, ?, 5, 6
3. Speculate that the missing number is the cube of 4, which is 64.
1, 2, 6, 42, 1806, ?????