Check divisibility of 111111 by 7
Asked by Topperlearning User
| 4th Jun, 2014,
01:23: PM
Expert Answer:
Remove the last digit, double it, subtract it from the truncated number and continue doing this until only one digit remains. If this is 0 or 7, then the original number is divisible by 7.
11111- 2 = 11109
1110 - 18 = 1092
109 - 4 = 105
10 - 10 = 0
Since 0 is obtained so the given number is divisible by 7
Answered by
| 4th Jun, 2014,
03:23: PM
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