Created
July 3, 2019 01:53
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="UTF-8"> | |
<meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
<meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
<title>소수 판별기</title> | |
</head> | |
<body> | |
<h1> 소수 판별 프로그램 </h1> | |
<script> | |
var num = 1; // 반복문이 시작되도록 초기화 | |
while (num != 0) { | |
var num = Number(prompt("판별하고 싶은 2 이상의 정수를 입력하세요. (0 입력시 종료)")); | |
for (var i = 2; i < num; i++) { // i: num을 나눌 최소한의 값 | |
if (num % i === 0) { | |
document.write(num + "은 소수가 아닙니다." + "<br>"); | |
break; // 한 번의 연산이 끝나면 반복문을 빠져나는 용도로 사용 | |
} else { | |
document.write(num + "은 소수입니다." + "<br>") | |
break; | |
} | |
} | |
} | |
</script> | |
</body> | |
</html> |
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