The number $N$ is a multiple of $7$. The base $2$ representation of $N$ is
10011010011ABC110_2.
Compute the ordered triple of digits $(A,B,C)$.
I didn't follow an algorithm. I legit tried every single possibilitility until I found 1.
When wee have A, B, C = 1, 0, 1, we get the number 10011010011101110
Converting this into base 10, we have
(10011010011101110)2=(1×216)+(0×215)+(0×214)+(1×213)+(1×212)+(0×211)+(1×210)+(0×29)+(0×28)+(1×27)+(1×26)+(1×25)+(0×24)+(1×23)+(1×22)+(1×21)+(0×20)=(79086)10
Dividing by 7, we get 79086/7=11298
THUS,
The answer is (A,B,C)=(1,0,1)
Thanks! :)
*I'm so tired