I've looked a lot through here and can't quite find why this line is wrong:
ArrayList <BigInteger> data = new ArrayList(); int [] primes = new int[25]; ... // Some initializing ... data.get(i) = data.get(i).divide( BigInteger.valueOf( primes[place] ) ); //<---- ... // Rest of the code Required: variable; Found: value.. What I'm doing wrong?
First, you should fix your Raw Type (and I'd prefer the List interface) like
List<BigInteger> data = new ArrayList<>(); then you need to use set because you can't assign to the return value of a get like that.
data.set(i, data.get(i).divide(BigInteger.valueOf(primes[place]))); Also, it's worth noting that BigInteger(s) are (per the Javadoc) immutable arbitrary-precision integers.
= only works to assign variables, fields and array elements.
You probably want to call set.
data.set(i, data.get(i).divide(...etc...)); 