factorial number

Solutions on MaxInterview for factorial number by the best coders in the world

showing results for - "factorial number"
Claudio
22 Nov 2017
1function getFactorial($int)
2{
3   
4    $factorial = 1;
5    for ($i = $int; $i > 1; $i--)
6    {
7        $factorial *= $i;
8    }
9    echo "The factorial of " . $int . " is " . $factorial . '<br>';
10}
Valentina
25 Jan 2019
1// METHOD ONE
2const factorialNumber = num => {
3    let factorials = []
4    for(let i = 1; i <= num; i++) factorials.push(i)
5    return factorials.reduce((acc , curr) => acc * curr, 1)
6}
7
8// METHOD TWO
9const factorialNumber = num => {
10    let factorial = 1, i = 1
11    while(i <= num){ factorial *= i; i++ }
12    return factorial
13}
14// METHOD THREE
15function factorialNumber(num) {
16    if(num < 1) return 1
17    else return factorialNumber(num - 1) * num
18}
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