Every digit of a number written in binary is either 0 or 1. To translate a number from binary, multiply the nth digit (reading from right to left) by 2^(n-1)
What is the largest prime number (written in binary) that is a factor of both 110000 and 1100000 ? Choose the correct answer
A) 10  B) 11  C) 101  D) 1011  E) 10001
Binary Divison can provide a quick answer if you are comfortable with it.   as option E is the biggest binary number we try with it first :   100010000/ 11 =10000   1000100000/ 11 =100000   so answer is option is 11
<result>B</result>
Every digit of a number written in binary is either 0 or 1. To translate a number from binary, multiply the nth digit (reading from right to left) by 2^(n-1)
What is the largest prime number (written in binary) that is a factor of both 110000 and 1100000 ?