function analyzeNumber() {
    let num = document.getElementById("numberInput").value;
    let output = "";
    let evenCount = 0;
    let oddCount = 0;
    let primeCount = 0;

    if (num <= 0) {
        document.getElementById("output").innerHTML = "⚠️ Enter a valid number";
        return;
    }

    for (let i = 1; i <= num; i++) {

        // Even / Odd check
        if (i % 2 === 0) {
            output += i + " - Even";
            evenCount++;
        } else {
            output += i + " - Odd";
            oddCount++;
        }

        // Prime check
        let isPrime = true;

        if (i <= 1) {
            isPrime = false;
        } else {
            for (let j = 2; j < i; j++) {
                if (i % j === 0) {
                    isPrime = false;
                    break;
                }
            }
        }

        if (isPrime) {
            output += " | Prime";
            primeCount++;
        }

        output += "<br>";
    }

    // Summary
    output += "<br><strong>Total Even Numbers: " + evenCount + "</strong><br>";
    output += "<strong>Total Odd Numbers: " + oddCount + "</strong><br>";
    output += "<strong>Total Prime Numbers: " + primeCount + "</strong>";

    document.getElementById("output").innerHTML = output;
}