Các câu hỏi tương tự
tim uoc chung lon nhat cua 8n-1 va 7n+3.Khi nao 8n-1 va 7n+3 la 2 so nguyen to cung nhau?
tim n thuoc N de 3n2 +2n+3 va 2n+1 nguyen to cung nhau
voi n so tu nhien thoa man 6n+1 va 7n-1 la hai so tu nhien khong nguyen to cung nhau thi uoc chung lon nhat cua 6n+1 va 7n-1 la bao nhieu
Tim stn n sao cho 2n+3 va 4n+1 la 2 so nguyen to cung nhau
1)n+1 va 3n+4 la nguyen to cung nhau
2)2n+3 va 4n+8 la 2 so nguyen to cung nhau
tim so tu nhien n de 2n+1 va 7n+2 la hai so nguyen to cung nhau
tim so tu nhien n sao cho 7n+13 va 2n+4 la nguyen to cung nhau
Biet rang 3n cong 1 va 5n cong 4 (n thuoc N ) la 2 so khong nguyen to cung nhau . Tim UCLN cua 2 so tren
Chung to rang cac so sau la cac so nguyen to cung nhau :
1) 2n + 1 và 2n + 3
2) 2n + 5 va 3n + 7