# power « biginteger « Java Data Type Q&A

### 1. How do you raise a Java BigInteger to the power of a BigInteger without doing modular arithmetic?    stackoverflow.com

I'm doing some large integer computing, and I need to raise a BigInteger to the power of another BigInteger. The .pow() method does what I want, but takes an int value ...

### 2. what is my error in the sum of power functions?    stackoverflow.com

I was solving this problem6, I dont even know the answer but, when I finished I think that I will get Ok, but my answers fails, 7910956276398901303 this is ...

### 3. BigInteger Raised to the power of BigInteger    coderanch.com

hello everyone, I'm working on a crypto application using RSA so my whole application is based on the use of BigIntegers. I reached a point where I need to calculate a bigInteger raised to the power of a bigInteger. unfortunately, this is not supported in the java bigInteger class. I checked for codes to accomplish this and found one here in ...

### 4. Power for BigInteger and BigDecimal    forums.oracle.com

What about using this trick, if the BigDecimal is not so big: BigDecimal x; BigDecimal y; x^y = x^(integer part of y).multiply(new BigDecimal(Math.pow(x.doubleVal, fractional part of y))) (so we just use the formula x^(a+b) = x^a * x^b and we use Math.pow on the fractional part...) Well, pseudocode, but I hope you got the idea...