Checking for buzz number – Computer Sir Ki Class


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Checking for buzz number

Test if a number is divisible by 7 or the last digit is 7, means whether the number is a buzz number.

Learning Objectives

  • Testing for divisibility and last digit checking together.

Source Code

TC++ #3176


Source Code

Run Output

Please enter a number: 21
21 is a buzz number

Please enter a number: 37
37 is a buzz number

Please enter a number: 15
15 is not a buzz number

Code Understanding

int n; cout<<“Please enter a number: “; cin>>n;
The number to be tested is collected from the user.

if(n%7 == 0 || n % 10 == 7)   cout << n << ” is a buzz number “<<endl;
In this case a buzz number has been tested when the number is divisible by 7 or the last number is 7.

else cout << n << ” is not a buzz number “<<endl;
Other wise suitable message for a non buzz number is printed.


  • The concept of buzz number comes from a memory an response testing technique where participants are asked say “BUZZ” when numbers are called in round robin and a number divisible by 7 or last digit 7 comes.

Suggested Filename(s): chkbuzz.cpp


sunmitra| Created: 29-Jan-2018 | Updated: 30-Jan-2018|

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