# Arithmetic random rules

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guvapuji's
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2015-04-17 19:04

## Section

Question | Answer |
---|---|

what dou you say about the numbers who have the same residue when it comes to devision by ten? | These numbers have the same first number from the right(alwa7adat) |

what does the subtraction of two numbers who are either both odd or both even give? | an even number |

Fermat's theorem? | when p is a prime number a^p and a have the same residue when divided by p. |

Fermat's little theorem? | n and p are co-prime integers, the residue of n^(p-1) when divided by p is 1. |

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