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1 function PrimeChecker (num) { 2 function permute (num) { 3 num = num.toString().split(''); 4 var answerArr = []; 5 var outerLength = num.length; 6 var innerLength = 1; 7 var startItem; 8 var moveItem; 9 for (var i = 1; i < num.length; i++) { 10 innerLength *= i; 11 } 12 13 for (var j = 0; j < outerLength; j++) { 14 startItem = num[j]; 15 num.splice(j, 1); 16 17 for (var k = 0; k < innerLength + 1; k++) { 18 moveItem = num.shift(); 19 num.splice(k, 0, moveItem); 20 if (k < innerLength) { 21 answerArr.push(parseInt(startItem + num.join(''))); 22 } 23 } 24 num.splice(j, 0, startItem); 25 } 26 return answerArr; 27 } 28 29 function isPrime (num) { 30 for (var i = 2; i < num; i++) { 31 if (num % i === 0) { 32 return false; 33 } 34 } 35 if (num === 1) { 36 return false; 37 } 38 return true; 39 } 40 41 var possibleCombos = permute(num); 42 var foundPerms = 0; 43 44 for (var k = 0; k < possibleCombos.length; k++) { 45 if (isPrime(possibleCombos[k])) { 46 foundPerms = 1; 47 } 48 } 49 50 return foundPerms; 51 }