Using BigInteger Multiply operator

java biginteger
Steffan Harris picture Steffan Harris · Oct 7, 2010 · Viewed 36.3k times · Source

I was wondering if there was a way to multiply BigInteger variables together, because the * operator cannot be applied to BigInteger.

So I was wondering if it was possible to multiply two BigIntegers together without using the * operator.

Answer

jjnguy picture jjnguy · Oct 7, 2010

You use BigIntegers multiply() method like so:

BigInteger int1 = new BigInteger("131224324234234234234313");
BigInteger int2 = new BigInteger("13345663456346435648234313");
BigInteger result =  int1.multiply(int2)

I should have pointed out a while ago that BigInteger is immutable. So any result of an operation has to be stored into a variable. The operator or operand are never changed.

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