tim cac so nguyen duong n sao cho n^2/60-n la 1 so nguyen to
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tim cac so nguyen duong n sao cho 2^2/60-n la SNT
1.tim tat ca cac so nguyen duong n sao cho tat ca cac so n+1,n+5,n+7,n+13,n+17,n+25,n+37 deu la cac so nguyen to
TRINH BAY DAY DU GIUP MINH NHA
tim so nguyen duong n nho nhat sao cho n^2 + 5n + 1 la so nguyen to
n2 + 5n + 1 = n ( n + 5 ) + 1
Với n \(\\ \in \) N thì n + 5 > 1
=> n2 + 5n + 1 thì n = 1
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thử từng trường hợp 1,2,3 , 3k,3k+1,3k+2
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tim cac so nguyen duong m va n sao cho 3m-1/2n va 3n-1/2m cung la so nguyen duong
cac ban giai ho minh nha
tim tat ca cac so nguyen duong n sao cho so T=2^n+1 la so chinh phuong
tim so nguyen duong n sao cho n545+n544+1 la so nguyen to
B1. Cho f(1)=1008,f(1)+f(2)+...+f(n)=n^2.f(n) f(n)la ham so duong
tinh f(2015)
B2 Cho cac so nguyen to q,p,r,s sao cho cac so sau deu la so nguyen to p^s+s^q,q^s+s^r,r^s+s^p
tim cac so p,q,r,s
B3 co a,b,c duong a mu 3+bmu3=c^3
so sanh a^2015+b^2015 va c^2015
B1. Cho f(1)=1008,f(1)+f(2)+...+f(n)=n^2.f(n) f(n)la ham so duong
tinh f(2015)
B2 Cho cac so nguyen to q,p,r,s sao cho cac so sau deu la so nguyen to p^s+s^q,q^s+s^r,r^s+s^p
tim cac so p,q,r,s
B3 co a,b,c duong a mu 3+bmu3=c^3
so sanh a^2015+b^2015 va c^2015
B1. Cho f(1)=1008,f(1)+f(2)+...+f(n)=n^2.f(n) f(n)la ham so duong
tinh f(2015)
B2 Cho cac so nguyen to q,p,r,s sao cho cac so sau deu la so nguyen to p^s+s^q,q^s+s^r,r^s+s^p
tim cac so p,q,r,s
B3 co a,b,c duong a mu 3+bmu3=c^3
so sanh a^2015+b^2015 va c^2015