Japan Prefecture Puzzle vs calcMod

＝＝Enjoy learning Japanese map with this puzzle.＝＝ 47 prefectures in Japan are shaped into the pieces of this puzzle. Do you know the details of Japanese geography? Not so many people seem to grasp the position of all prefectures exactly, even if they know well about where they are. Both kids and adults can enjoy playing this app in order to learn the position of 47 prefectures with fun. Playing this puzzle enables you to learn both the position and the name of each prefecture. The pieces of each prefecture are scattered at first. Let’s complete the Japanese map, shifting each piece correctly with your finger. ■Features *Even small children can play easily since it only requires touching the screen with one finger. *The name of each prefecture is shown and read out when you touch the pieces. *The time to complete all pieces will be recorded, and the fastest record will be displayed

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).