ch k la mot so nguyen co dang k=3k+7 hoi k co the nhan nhung gia tri nao trong cac gia tri sau 11,2011,1150,22789,199537

mot so nguyuen a co dang 3k+5thi-a co dang 3m+n

chung minh rang voi moi so tu nhien n # 0 thi:

a moi so nguyen to lon hon 2 deu co dang 4n _+1

b moi so nguyen t lon hon 3 deu co dang 6n +_1

so tu nhien n co dang n=37k la so nguyen to khi k =?

so tu nhien n co dang n =37k la so nguyen to khi k =

phan so 6/35 co the viet duoi dang tich cua hai phan so co tu va mau la cac so nguyen duong co mot chu so

Tim n thuoc N biet so n co 30 uoc va khi phan tich thanh thua so nguyen to thi co dang n = 2^x × 3^y biet x+y =8

Tim n thuoc N , biet so n co 30 uoc va khi phan tich thanh thua so nguyen to thi co dang n = 2^x × 3^y biet x + y = 8

1)chung to rang so nguyen to p;p>5 khi chia cho 6 chi 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

cac an giai giup minh minh dang can gap

ai giai nhanh minh tick cho