Question

Find the wrong number in the given series.

8, 27, 125, 343, 1381
A) 27
B) 8
C) 343
D) 1381

Answer 1

Option D ) 1381 is wrong.
as----
8=2^3
27=3^3
125=5^3
343=7^3
1331=11^3

In this sequence all the numbers should be the cube of prime numbers.

Answer 2

Answer:

Option D is wrong one !

➡Here is Cube of given prime number sequence :-

As,

✒ 8 => 2^3

✒27 => 3^3

✒125 => 5^3

✒343 => 7^3

✒1331 => 11^3

Hence ,

In this sequence all the numbers should be the cube of prime numbers.