3 số ngyen tô nho hon 20 la
13 ; 17 ; 19
k minh nha
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3 số ngyen tô nho hon 20 la
13 ; 17 ; 19
k minh nha
Tim so binh phuong so nguyen to nho hon 20
tim 3 so nguyen to a,b,c sao cho abc nho hon ab+bc+ca
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
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 so nguyen to a de 4a cong 11 la so nguyen to nho hon 30
hai cap so nguyen to hon kem nhau 2 don vi goi la cap so nguyen to sinh doi. tim cac cap so nguyen to sinh doi nho hon 100
tim cac so nguyen to a de 4a +11 la so nguyen to nho hon 30
a, tim cac so nguyen n biet -3 nho hon hoac bang n va nho hon 5.
b, tinh tong cac so nguyen tim duoc o cau a.