diff --git a/compose.yaml b/compose.yaml
index 07b0eeb..0648540 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -143,4 +143,13 @@ services:
     volumes:
       - ./lab 5/ConditionalCoprimeTraversal:/app
     stdin_open: true
+    tty: true
+    
+  lab5-number-operations-advanced:
+    build:
+      context: ./lab 5/NumberOperationsAdvanced
+      dockerfile: ../../Individual Task 1/Dockerfile
+    volumes:
+      - ./lab 5/NumberOperationsAdvanced:/app
+    stdin_open: true
     tty: true 
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diff --git a/lab 5/Makefile b/lab 5/Makefile
index 9792fd1..5c87231 100755
--- a/lab 5/Makefile	
+++ b/lab 5/Makefile	
@@ -1,4 +1,4 @@
-.PHONY: run build clean quadratic circle numbers recursion factory traverse lambda conditional examples favoritelang favoritelangfp mutuallyprimetraversal eulerfunction conditionalcoprimetraversal
+.PHONY: run build clean quadratic circle numbers recursion factory traverse lambda conditional examples favoritelang favoritelangfp mutuallyprimetraversal eulerfunction conditionalcoprimetraversal numberoperationsadvanced
 
 # HelloWorld
 run:
@@ -150,4 +150,14 @@ build-conditionalcoprimetraversal:
 	cd ConditionalCoprimeTraversal && dotnet build
 
 clean-conditionalcoprimetraversal:
-	cd ConditionalCoprimeTraversal && dotnet clean 
\ No newline at end of file
+	cd ConditionalCoprimeTraversal && dotnet clean
+
+# NumberOperationsAdvanced
+numberoperationsadvanced:
+	cd NumberOperationsAdvanced && dotnet run --project NumberOperationsAdvanced.fsproj
+
+build-numberoperationsadvanced:
+	cd NumberOperationsAdvanced && dotnet build
+
+clean-numberoperationsadvanced:
+	cd NumberOperationsAdvanced && dotnet clean 
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diff --git a/lab 5/NumberOperationsAdvanced/NumberOperationsAdvanced.fsproj b/lab 5/NumberOperationsAdvanced/NumberOperationsAdvanced.fsproj
new file mode 100644
index 0000000..c5f282e
--- /dev/null
+++ b/lab 5/NumberOperationsAdvanced/NumberOperationsAdvanced.fsproj	
@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>NumberOperationsAdvanced</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Include="Program.fs" />
+  </ItemGroup>
+
+</Project> 
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diff --git a/lab 5/NumberOperationsAdvanced/Program.fs b/lab 5/NumberOperationsAdvanced/Program.fs
new file mode 100644
index 0000000..9729e4e
--- /dev/null
+++ b/lab 5/NumberOperationsAdvanced/Program.fs	
@@ -0,0 +1,70 @@
+open System
+
+// method 1: Найти количество делителей числа, не делящихся на 3
+let countDivisorsNotDivisibleByThree (n: int) =
+    let rec countDivisors current count =
+        if current > n then 
+            count
+        else
+            // является ли текущее число делителем n и не делится ли оно на 3
+            let newCount = 
+                if n % current = 0 && current % 3 <> 0 then
+                    count + 1
+                else
+                    count
+            countDivisors (current + 1) newCount
+    
+    if n <= 0 then 0 else countDivisors 1 0
+
+// method test
+let testCountDivisorsNotDivisibleByThree () =
+    let testCases = [1; 3; 6; 9; 10; 12; 15; 20; 30]
+    
+    printfn "Тестирование метода 1: Количество делителей числа, не делящихся на 3"
+    for n in testCases do
+        let divisors = [1..n] |> List.filter (fun i -> n % i = 0)
+        let divisorsNotDivByThree = divisors |> List.filter (fun i -> i % 3 <> 0)
+        
+        let expected = divisorsNotDivByThree.Length
+        let result = countDivisorsNotDivisibleByThree n
+        
+        printfn "n = %d:" n
+        printfn "  Все делители: %A" divisors
+        printfn "  Делители, не делящиеся на 3: %A" divisorsNotDivByThree
+        printfn "  Результат: %d (ожидаемый: %d) - %s" result expected (if result = expected then "OK" else "ОШИБКА")
+        printfn ""
+
+[<EntryPoint>]
+let main argv =
+    Console.OutputEncoding <- Text.Encoding.UTF8
+    
+    printfn "Задание 16. Вариант № 5. Метод 1: Найти количество делителей числа, не делящихся на 3.\n"
+    
+    testCountDivisorsNotDivisibleByThree()
+    
+    printfn "Интерактивный режим:"
+    let rec processUserInput () =
+        printf "Введите число для вычисления количества делителей, не делящихся на 3 (или 'q' для выхода): "
+        let input = Console.ReadLine()
+        
+        match input.ToLower() with
+        | "q" | "quit" | "exit" -> ()
+        | _ ->
+            match Int32.TryParse(input) with
+            | true, n when n > 0 ->
+                let result = countDivisorsNotDivisibleByThree n
+                let divisors = [1..n] |> List.filter (fun i -> n % i = 0)
+                let divisorsNotDivByThree = divisors |> List.filter (fun i -> i % 3 <> 0)
+                
+                printfn "Число: %d" n
+                printfn "Все делители: %A" divisors
+                printfn "Делители, не делящиеся на 3: %A" divisorsNotDivByThree
+                printfn "Количество делителей, не делящихся на 3: %d" result
+                printfn ""
+                processUserInput ()
+            | _ ->
+                printfn "Некорректный ввод. Пожалуйста, введите положительное целое число.\n"
+                processUserInput ()
+    
+    processUserInput ()
+    0 
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