Question

find the least value of * for which the number 13 *1 is divisible by 11​

Answer 1

Answer:

1331

coz this number is cube of 11

Answer 2

Answer:

The value of ∗ is $3.$

Step-by-step explanation:

⇒  Divisibility by $11$:

When the sum of the digits at the odd places and the sum of the digits at the even places are either equal or a multiple of 11, the number is divisible by $11$.

Let the number ∗ be x

∴   Sum of even digits in $13*1$      =      $1+x$

∴   Sum of odd digits in $13*1$       =      $3+1$      $=4$

According to the rule, the sum of even digits = Sum of odd digits

$\implies$  $1+x=4$

$\implies x=3$

⇒  $1331$  is divisible by $11$

∴   The value of ∗ is $3.$

#SPJ3