Is 645777890 divisible by 7 tell with the help of short method – InterviewSolution

1.	Is 645777890 divisible by 7 tell with the help of short method
Answer» MULTIPLY LAST DIGIT by 2.means 2×0 = 0 subtract 64577789- 0 = 64577789 so it's not DIVISIBLE by 7 .so 645777890 is not divisible by 7.

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