Các câu hỏi tương tự
hai so nguyen to sinh doi la hai so nguyen to hon kem nhau 2 don vi .Tim hai so nguyen to sinh doi nho hon 50
biet rang 2 so nguyen to hon kem nhau 2 don vi duoc goi la 2 so nguyen to sing doi
chung to rang : 1 so nguyen to >5 nam giua 2 so nguyen to sing doi thi so do chia het cho 6
1.Tong (hieu) sau la so nguyen to hay hop soa/5.6.7+8.9 b/5.7.9.11-2.3.7 c/5.7.11+13.17.19 d/4253+14222.Hai so nguyen to sinh doi la hai so nguyen to hon kem nhau 2 don vi.Tim hai si nguyen to sinh doi nho hon 50.3.Cho biet:Neu do tu nhien a(lon hon 1)khong chia het cho moi so nguyen to p ma binh phuong ko vuot qua a(tuc la p2 lon hon hoac bang aĐ thi a la so nguyen to.Dung nhan xet tren cho biet so nao trong...
Đọc tiếp
1.Tong (hieu) sau la so nguyen to hay hop so
a/5.6.7+8.9 b/5.7.9.11-2.3.7 c/5.7.11+13.17.19 d/4253+1422
2.Hai so nguyen to sinh doi la hai so nguyen to hon kem nhau 2 don vi.Tim hai si nguyen to sinh doi nho hon 50.
3.Cho biet:Neu do tu nhien a(lon hon 1)khong chia het cho moi so nguyen to p ma binh phuong ko vuot qua a(tuc la p2 lon hon hoac bang aĐ thi a la so nguyen to.Dung nhan xet tren cho biet so nao trong cac so 59;121;179;197;217 la so nguyen to?
4.a/So 2009 co la boi cua 41 ko?
b/Tu 2000 den 2020 chi co 3 so nguyen to la 2003;2011;2017.Hay giai thich tai sao cac so le khac trong khoang tu 2000 den 2020 deu la hop so.
5.Goi a=2 . 3 . 4 . 5 . .... . 101. Co phai 100 so tu nhien lien tiep sau deu la hop so ko?
a+2,a+3,a+4,...,a+101.
ai dung kik cho,giup mk nha,ai biet lam bai nao thi lam cung dc,lm het cang tot
cho x ; y la cac so nguyen to sao cho gia tri tuyet doi cua x cong gia tri tuyet doi cua y bang 5 so cap so nguyen (x;y) thoa man la
Tim cac so nguyen to p de 4p+9 la so nguyen to nho hon 40.
Tim cac so nguyen to p de 4p +9 la so nguyen to nho hon 40.
tim cac so nguyen to a de 4a +11 la so nguyen to nho hon 30
tim cac cap so nguyen to x,y: x.y=2x+2y
cho 2 so nguyen a nguyen b(b khac 0) .chung to rang cac cap phan so sau day luon bang nhau