calcMod vs Big Number Calculator+

What are all the digits of the factorial of 69 and how many digits ? What is the gogol number ? How many integers of the form 10^n+1 are prime ? (like 101) Want to know if a big integer is prime ? The change mod function indicates when the number is prime. Want to know the divisors of an integer ? A prime divisor has no inverse modulo this integer. This is a modulo calculator overpowering almost limitless! (only display is limited !) With modulo gogol, calculus are exact until 100 digits ! The "n!" button calculates the factorial of an integer from 0 to 2000. Factorial are limited to factorial of 2000. The "change modulo" (change modulo) function indicates when the modulo is prime. There are no limit to the modulo except the display. The "modulo gogol" button set a modulo to 10^100 (gogol number). You can stoke one number and recall it when you want. The "Mod" operation indicates the residue modulo N. The "pow" function allow modular exponentiation (as + - *) The "INV" function calculates the inverse of an integer modulo N. This app is intended for both mathematics teachers and/or their students, or if you are interested in the beauty of numbers. Enjoy calcMod-Blk ! Les commentaires sont disponibles en français (réglages).

“Big Number Calculator+” is an application that can calculate very large numbers. The format that can be used is decimal (integer). The calculation functions that can be used are addition, subtraction, multiplication, and division. The number of digits is limited to 66000 digits. Only plus signs can be used. Minus signs cannot be used. The calculation engine used in the calculation can be selected from “Swift” and “Objective-C”. You can also view the source code of the calculation engine. Please use at your own risk. Only numerical values ​​(1,2,3,4,5,6,7,8,9,0) are extracted from the input data. You can optionally enter non-numeric characters. It can be used as a delimiter. It can be load from a file in addition to direct input. Input data and calculation results are automatically formatted for printing and saving. The save file is saved in text format (.txt). "Big Number Calculator" for macOS is also available. Main Specifications • iOS 13 and iPadOS 13 or later Main functions Maximum number of digits of input data • 66000 digits Calculation function • Addition, subtraction, multiplication, division The algorithm uses the "brush calculation method". The division is displayed as “quotient and remainder". Calculation engine • “Swift” and “Objective-C” can be selected. Numeric format • Decimal number (integer) Only the plus sign can be used as the sign. Minus signs cannot be used. Numerical input • Only numerical values ​​(1,2,3,4,5,6,7,8,9,0) are extracted. • Characters other than numerical values ​​can be entered in the option settings. Can be used as a delimiter. Load from file • The file types that can be load are "txt, rtf, rtfd". Data replacement and registration • Input data and calculation results can be replaced by dragging and dropping. It can also be registered in the register. Separation • Separate with the selected delimiter (comma and space). • Separate by the selected number of separation digits (3, 6, 10, 16, 24). Any number of separation digits can be entered. Printing • Input data and calculation results are automatically formatted. Save • Input data and calculation results are automatically formatted. • The file format is text (.txt) format. Source code • The source code of the calculation engine can be displayed. Please use at your own risk.