Program or library to handle massive numbers [closed]

Question

I am looking for some way to handle numbers that are in the tens of millions of digits and can do math at this level. I can use Java and a bit of Python. So a library for one of these would be handy, but a program that can handle these kind of numbers would also work. Does anyone have any suggestions?

Thanks

Answer 1

For Java, take a look at the built-in classes BigInteger and BigDecimal. BigInteger numbers are limited in size by available memory. BigDecimal can represent arbitrarily large base-10 numbers with up to 2³² digits to the right of the decimal point (in practical terms, also limited by available memory).

Both of these are limited to fairly elementary math operations. (Arithmetic, integer powers, etc. No roots, logs, etc.) If you need something more than this, consult the list of libraries at the Java Numerics page of NIST. (The Apfloat package supports arbitrary-precision transcendental functions and complex math.)