khi nay tui viet thieu !
cau hoi la : phan tich cac so sau ra thua so nguyen to ,tu do cho biet cac cac uoc la so nguyen to , cac uoc la hop so so do co bao nhieu uoc
a, 48 b, 98 c , 100 d, 120
nhanh len tui can gap lan do
phan tich cac so sau ra thua so nguyen to , tu do cho bet cac uoc la so nguyen to , cac uoc so la hop so , so do co bao nhieu uoc ?
cac ban giai nhanh len tui can gap ?
42=2.3.7
98=2.7^2 rồi giải tiếp ra ,dễ lắm
100=2^2.5^2
120=2^3.3.5
thieu oi !
phan tich nay !
a, 42 b, 98 c, 100 d, 120
cho B la mot so tu nhien .Biet B =tich cua axby ; a,b la cac so nguyen to khac nhau ;x,y la cac so tu nhien khac 0 . B2co 15 uoc Hoi B3co bao nhieu uoc
cho a la 1 hop so, khi phan tich ra thua so nguyen to chi chua hai thua so nguyen to khac nhau la P 1 va P 2. biet a^3 co tat ca 40 uoc. Hoi a ^2 co bao nhieu uoc
Cho a la mot hop so.biet khi phan tich ra thua so nguyen to thi a chi chua 2 thua so nguyen to la p1 va p2. Biet a mu 3 co tat ca 40 uoc tu nhien.
Hoi a mu 2 co bao nhieu uoc tu nhien.
Ai giai nhanh minh tick.giai ra nhe
phan tich cac so sau ra thua so nguyen to roi tim tap hop cac uoc cua moi so do 78;70
3)tim hai so tu nhien lien tiep co tich bang 1190
cho so tu nhien co tat ca 3 uoc so nguyen to.Tap hop cac uoc cua so do co so phan tu la
cho a la mot hop so ,khi phan tich ra thua so nguyen to chi chua 2 thua so nguyen to khac nhau la p1 va p2.biet a3 co tat ca 40 uoc hoi a2co bao nhieu uoc
cho cac so nguen : a = 10 , b = -18
a) viet tap hop cac uoc cua a , cac uoc cua b
b) viet tap hop cac so nguyen vua la uoc cua a vua la uoc cua b
c) viet tap hop cac so nguyen vua la boi cua a vua la boi cua b
1.Cho 3 so:36,84,168
a.Phan tich moi so ra thua so nguyen to roi cho biet moi so do co may uoc
b.Tim cac tap hop uoc cua moi so
2.Viet cac tap hop sau roi tim cac phan tu chung cua cac tap hop do:
a.Ư(4),Ư(6)
b.B(4),B(6)
Cac ban lam on giup mik nha mai mik phai di hoc roi ban nao lam duoc mik tick cho ,cam on cac ban nha
Câu 2:
a: Ư(4)={1;2;4}
Ư(6)={1;2;3;6}
ƯC(4;6)={1;2}
b: B(4)={0;4;8;...}
B(6)={0;6;12;18;...}
BC(4;6)={0;12;24;...}