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voi p la so nguyen to lon hon 3 thi so du la ?
A=(p-1)(p+1) + 1 khi chia cho 24
cho p la so nguyen to lon hon 2.so du cua A=3^p -2^p khi chia cho 3 la
cho p la so nguyen to lon hon 2. so du cua A= 3^p - 2^p khi chia cho 3 la?
chung to rang so nguyen to p;p>5 khi chia cho 6 co the du 1 hoac 5
2)chung minh rang neu p va p+2 la so nguyen to lon hon 3 thi p+1 la mot hop so
cho p la so nguyen to lon hon 2 . so du cua A=3^p-2^p khi chi cho 3 la
Cho p la so nguyen to lon hon 2. So du cua A=3^p-2^p khi chia cho 3 la
lam nhanh len nhe
dung cho like
bai 3 cho p la so nguyen to lon hon 3
A, chung to p co dang 6k+1 hoac 6k+5
B, cho p va 8p-1 la so nguyen to. chung to 8p+1 la hop so
bai 4
A, tim a va b biet rang a.b=320 va BCNN(a,b)=160
B, tim so tu nhien a nho nhat co 3 chu so sao cho khi chia a cho 11 du 5 va chia cho 13 thi du 8
cho p va q la 2so nguyen to lon hon 3 ;biet p=q +2.tim so du cua p+q khi chia cho 12
chung minh p la so nguyen to lon hon 3 thi (p-1) nhan (p+1) chia het cho 24