tim diem khac va giong nhau cua cach tim boi chung nho nhat va uoc chung lon nhat
tim 2 so a va b biet boi chung nho nhat cua a va b=240 va uoc chung lon nhat cua a va b=16
tim 2 so a va b biet boi chung nho nhat cua a va b=240 va uoc chung lon nhat cua a va b=16
cho n la so tu nhien ,tim uoc chung lon nhat va boi chung nho nhat cua n va n+2
Gọi ƯCLN(n, n + 2) = d
Ta có: 1n . 1n + 2 = 1n . 3n
ƯCLN(1n, 3n) = d
=> 1 = d
=> d = 1
Vậy ƯCLN(n, n + 2) = 1
tim 2 so tu nhien a va b ,biet boi chung nho nhat cua a va b la 420 ;uoc chung lon nhat cua a va b la 21 ;a+21 =b
giup to voi no khung qua
tim 2 so tu nhien biet tong uoc chung lon nhat va boi chung nho nhat la 23
a, Tim hai uoc va hai boi cua 33
b, Tim hai uoc chung cua 33 va 44
c, Tim hai boi chung cua 33 va 44
ai giai bai nay nhanh nhat thi to se tich cho nguoi dau tien luon
Cach tim uoc chung thong qua boi chung lon nhat
tim cac uoc chung va cac uoc chung lon nhat cua cua 60,80
uoc chung lon nhat cua 60,80 la20
nha nhok
thanks
ƯCLN(60,80)=20
ƯC(60,80)=Ư(20)=1,2,4,5,10,20
ƯC ( 60 , 80 ) = 20
ƯCLN( 60 , 80 ) = 20
T I C K , N H A
tim 2 so tu nhien a,b biet a+b=40 boi chung nho nhat = 7 .uoc chung lon nhat