diff --git a/HW1/fifth.js b/HW1/fifth.js
new file mode 100644
index 0000000..9f23668
--- /dev/null
+++ b/HW1/fifth.js
@@ -0,0 +1,29 @@
+let inputNumbers = "1 -3 5 7 9 -1";
+const array = inputNumbers.split(" ");
+
+function findMin(someArray) {
+    let minValue = Infinity;
+    for (let i = 0; i < someArray.length; i++){
+        if (+someArray[i] < +minValue) {
+            minValue = someArray[i];
+        }
+    }
+
+    return minValue;
+}
+
+function findMax(someArray) {
+    let maxValue = -Infinity;
+    for (let i = 0; i < someArray.length; i++){
+        if (+someArray[i] > +maxValue) {
+            maxValue = someArray[i];
+        }
+    }
+
+    return maxValue;
+}
+
+minV = findMin(array);
+maxV = findMax(array);
+
+console.log(`${minV} ${maxV}`);
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diff --git a/HW1/first.js b/HW1/first.js
new file mode 100644
index 0000000..840f49d
--- /dev/null
+++ b/HW1/first.js
@@ -0,0 +1,12 @@
+const inputNumber = 10;
+let answer = 0;
+
+if (inputNumber > 0){
+    for (let i = 1; i < inputNumber; i++){
+        if ((i % 3 === 0) || (i % 5 === 0)){
+            answer += i;
+        }
+    }
+}
+
+console.log(answer);
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diff --git a/HW1/fourth.js b/HW1/fourth.js
new file mode 100644
index 0000000..9e7e953
--- /dev/null
+++ b/HW1/fourth.js
@@ -0,0 +1,13 @@
+const inputNumber = 143;
+
+function is_prime(number) {
+    for (let i = 2; i < number; i++){
+        if (number % i === 0){
+            return false;
+        }
+    }
+
+    return true;
+}
+
+console.log(is_prime(inputNumber));
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diff --git a/HW1/second.js b/HW1/second.js
new file mode 100644
index 0000000..300833e
--- /dev/null
+++ b/HW1/second.js
@@ -0,0 +1,5 @@
+const diskNumber = 5;
+
+answer = (2**diskNumber) - 1;
+
+console.log(answer);
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diff --git a/HW1/sixth.js b/HW1/sixth.js
new file mode 100644
index 0000000..84e68b4
--- /dev/null
+++ b/HW1/sixth.js
@@ -0,0 +1,48 @@
+const inputNumber = 2474704649;
+const array = inputNumber.toString().split("");
+let resultArray = [];
+let tempMax;
+let realMax;
+let result = 0;
+
+//Finds max value, but lower than max value before
+function findMax(someArray) {
+    let maxValue = -Infinity;
+    for (let i = 0; i < someArray.length; i++){
+
+        //Check if tempMax is empty
+        if (tempMax != undefined){
+            if ((someArray[i] > maxValue) && (someArray[i] < tempMax)) {
+                maxValue = someArray[i];
+            }
+        }
+        else{
+            if (someArray[i] > maxValue) {
+                maxValue = someArray[i];
+            }
+        }
+
+    }
+
+    return maxValue;
+}
+
+if (inputNumber > 0) {
+    realMax = tempMax = findMax(array);
+
+    while (resultArray.length !== array.length){
+        for (let i = 0; i < array.length; i++){
+            if (array[i] === tempMax){
+                resultArray.push(tempMax);
+            }
+        }
+        tempMax = findMax(array);
+    }
+}
+
+//Convert array to number
+for (let i = 0; i < resultArray.length; i++){
+    result += resultArray[i] * 10**(resultArray.length - i - 1);
+}
+
+console.log(result);
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diff --git a/HW1/third.js b/HW1/third.js
new file mode 100644
index 0000000..fe4d845
--- /dev/null
+++ b/HW1/third.js
@@ -0,0 +1,17 @@
+const totalVolume = 1071225;
+
+function findNB(m){
+    let i = -1;
+    for (i = 1; m > 0; i++){
+        m -= i**3;
+    }
+    if (m != 0){
+        i = -1;
+        return i
+    }
+    else {
+        return i - 1;
+    }
+}
+
+console.log(findNB(totalVolume));
\ No newline at end of file