尋找最大質數副本 | JavaScript 程式專案

{"id":54958,"student_id":1587,"content":"setBackdrop(\"#1fff1c\");\n\nfunction check (num) {\n    if (num \u003c= 1) {\n        return false;\n    }\n    var sqrt = Math.sqrt(num);\n    for (var i = 2; i \u003c= sqrt; i++) {\n        if (num%i == 0) {\n            // console.log(\"false\");\n            return false;\n        }\n    }\n    // console.log(\"true\");\n    return true;\n}\nvar b = 0;\nvar max = 0;\nforever(function() {\n    b++;\n    if (check(b)) {\n        console.log(b);\n        max = b;\n    }\n    print(\"largest prime number\", 80, 100, \"black\", 50)\n    print(max, 250, 200, \"black\", 50);\n});","created_at":"2019-01-26T09:59:58.649+08:00","updated_at":"2019-10-29T23:55:01.803+08:00","name":"尋找最大質數 副本","language":"javascript","screenshot":{"url":"https://cdn9.koding.school/uploads/project/screenshot/54958/a8e5475ed13db20d616e28efa63b0e6e.jpg"},"parent_id":32559,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":101,"hashid":"5j3svkd9","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}