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CBSE Class 6 Answered

Check divisibility of 111111 by 7
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert 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 | 04 Jun, 2014, 03:23: PM
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