The number 2143251 is divisible by:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 3
Concept Used :
Divisibility of 13 : A number is divisible by 13 if the number formed by the remaining digits plus the last digit four times is divisible by 13.
Divisibility of 7 : The difference between twice the unit digits of the given number and the rest of the given number must be a multiple of 7 or equal to 0.
Divisibility of 3 : If the sum of the digits of the number is divisible by 3, the number is divisible by 3.
The given number is 2143251.
Divisiblity of 13 : 214325 + 4 = 214329 is not divisible by 13.
Divisibility of 7 : 214325 - 2 = 214323 is not divisible by 7.
Divisibility of 3 : 2 + 1 + 4 + 3 + 2 + 5 + 1 = 18 which is divisible by 3
Hence the given number is divisible by 3.