The rule book can be downloaded from here (Japanese).

Please press the "LOAD PRIMES!" button.

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Prime or not? | Prime? |

Prime factorization |

- You must press the "LOAD PRIMES!" button to load the prime list.
- You get a textbox to input the number.
- Input the number and push "ENTER" or the button.
- You will get the result!

The number 57 is the celebrated Grothendieck prime in this app because of the rule.

Negative numbers are converted to positive numbers.

I made some prime number list and load it for prime numbers processing .

I also use this list to factorize integers.

Please tell me a more better prime number list if you know!