100阶乘 js

function factorial(n) {
    let result = [1]; // 初始化结果数组，初始值为1
    for (let i = 2; i <= n; i++) {
        let carry = 0;
        for (let j = 0; j < result.length; j++) {
            let product = result[j] * i + carry;
            result[j] = product % 10; // 存储当前位的结果
            carry = Math.floor(product / 10); // 计算进位
        }
        while (carry) { // 处理剩余的进位
            result.push(carry % 10);
            carry = Math.floor(carry / 10);
        }
    }
    return result.reverse().join(''); // 将结果数组逆序并转换为字符串
}

console.log(factorial(100)); // 输出100的阶乘