#### NUMBERS THEORY-18

Proposed by Angad Singh-Pune-India NUMBERS THEORY-18 Solution by proposer

#### NUMBERS THEORY-17

Proposed by Angad Singh-Pune-India NUMBERS THEORY-17 Solution by proposer

#### NUMBERS THEORY-16

Proposed by George Florin Șerban-Romania NUMBERS THEORY-16 Solution by Mohamed Amine Ben Ajiba-Tanger-Morocco

#### EQUATION IN INTEGERS-19

Proposed by George Florin Șerban-Romania EQUATION IN INTEGERS-19 Solution 1 by Mohamed Amine Ben Ajiba-Tanger-Morocco,Solution 2 by Samar Das-India

#### EQUATION IN INTEGERS-18

Proposed by George Florin Serban-Romania EQUATION IN INTEGERS-18 Solution by Mohamed Amine Ben Ajiba-Tanger-Morocco

#### NUMBERS THEORY-15

Proposed by Adil Abdullayev-Baku-Azerbaijan NUMBERS THEORY-15 Solution 1 by Mohamed Amine Ben Ajiba-Tanger-Morocco, Solution 2 by Amrit Awasthi-India

#### EQUATION IN INTEGERS-17

Proposed by Mehmet Șahin-Ankara-Turkey EQUATION IN INTEGERS-17 Solution by Dang Le Minh Nhat-Vietnam

#### EQUATION IN INTEGERS-16

Proposed by Mehmet Sahin-Ankara-Turkey EQUATION IN INTEGERS-16 Solution by Mohamed Amine Ben Ajiba-Tanger-Morocco

#### EQUATION IN INTEGERS-15

Proposed by Mehmet Șahin-Ankara-Turkey EQUATION IN INTEGERS-15 Solution by Mohamed Amine Ben Ajiba-Tanger-Morocco