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- { //Rustam Zavkibekov
- //#7 (n! / (r! * (n -r)! ))
- let n = 4, r = 2, N = 1, R = 1, NR = 1, nr, result;
- for(let i = 1 ; i <= n ; i++){
- N = N * i;
- }
- for(let i = 1 ; i <= r ; i++){
- R = R * i;
- }
- nr = n - r;
- if(nr > 0){
- for(let i = 1 ; i < nr ; i++){
- NR = NR * i
- }
- }
- result = (N / (R * NR));
- console.log("\n#7\n" + result);
- }
- {
- //#8
- let a = 117, info = "Число " + a + " простое";
- for(let i = 2 ; i < a ; i++){
- if(a % i == 0){
- info = "Число " + a + " не простое";
- break;
- }
- }
- console.log("\n#8 \n" + info);
- /*
- //для множества чисел от 1 до а
- console.log("\n#8");
- for(let i = 2 ; i <= a ; i++){
- info = "Число " + i + " простое";
- for(let j = 2 ; j < i ; j++){
- if(i % j == 0){
- info = "Число " + i + " не простое";
- break;
- }
- }
- console.log(info);
- }
- */
- }
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