có 12=22 . 3
30= 2.3.5
=> UCLN (12,30) = 2.3=6
ƯCLN(12;30)
12=22.3
30=2.3.5
=>ƯCLN(12;30)=2.3=6
Đáp số:6
Tim UCLN(12,30)
Tìm
UCLN (12,30)
tim ucln cua 24 va 70
tim ucln cua 81 va 54
tim ucln cua 128 va 112
tim ucln cua 108 va 160
tim UCLN(212;64)
tim UCLN(ab+ba;55)
tim ucln cua 14x+3
tim ucln cua 21x+1
1,tim 2 so tu nhien biet tong chung = 66 UCLN=6 co 1 so chia het cho 5
2,tim 2 so tu nhien biet hieu chung = 84 UCLN = 12
3,tim 2 so tu nhien biet tich = 864 UCLN=6
4,cho 3n+1 va 5n+4 la 2 so nguyen to cung nhau tim UCLN cua 3n+1 va 5n+4
5,cho a=123456789;b=987654321 . Tim UCLN cua a va b
tim ucln cua 18 ; 30 ; 77
tim ucln cua 16 ; 80 ; 176
Tìm ƯCLN(12,30) rồi từ đó tìm tập hợp ƯC(12,30)
1,tim UCLN = 2 cach
a,UCLN ( 120,50 )
b,UCLN( 200,40 )
c,UCLN(60,80)
d,UCLN(90,150)
g,UCLN(160,240)
