Big Integer Calculator

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1.7.7 nCr re-fine tuned

1.7.5 nCr button added. CE/C button now dual function. Click to clear digit, longclick to clear all. Multiplicative factors for max digit and pollard rho changes.

1.7.1 Store and recall buttons added. Calculator button area will scroll now on smaller screens in landscape if necessary.

1.6.3 Paste from clipboard into calculation area. Paste the first argument of a calculation into the calculation area, using the menu.

1.6.0 Prime factorization algorithm added.