Factorial of larger no like 100 etc

#1

In normal procedure of loops the factorial value is displayed for 20 factorial but in recursion it shows a negative no !! why ?? and how should i find the factorial of a larger no like 100.

#2

@Krish-Banerjee-2770813363035183,
We use bigInteger for that. Since integer/long will overflow and return garbage values.

public static void main(String[] args) {

BigInteger fact = BigInteger.valueOf(1);
for (int i = 1; i <= 100; i++)
    fact = fact.multiply(BigInteger.valueOf(i));
System.out.println(fact);
}

I have attached the code for the same.

BigInteger:
BigInteger class is used for mathematical operation which involves very big integer calculations that are outside the limit of all available primitive data types.

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#3

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