What do you mean by Digit sum? – InterviewSolution

1.	What do you mean by Digit sum?
Answer» digit sum of a number, say 132, is just the sum of the digits, 1+2+3=6. If the sum of the digits is greater than nine then the PROCESS is REPEATED. The digit sum is the end RESULT of repeatedly computing the sum of the digits until a SINGLE digit ANSWER is obtained.

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