void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
randomSeed(analogRead(0));

while(true){
  int randomNumber = random(1,100);

  Serial.print("bilangan acak: ");
  Serial.println(randomNumber);

  if(randomNumber % 7 == 0){
    Serial.print("ketemu, bilangan ini habis di bagi 7!!!");
    break;
  }
}
}

void loop() {
  // put your main code here, to run repeatedly:

}