The number 7918378 is divisible by:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 13.
Number = 7918378
Alternating sum by grouping triplet = 378 - 918 + 7 = - 533
Remainder when (-533) ÷ 13 = 0
Hence, the number is divisible by 13.