Binary Primes

 
 
Fill in the squares using 4-bit binary numbers.  For instance, 1=0001, 2=0010, 3=0011, etc.
 
 
Across
  1. 4 Across - 4 Down.
  2. A multiple of 3.
  3. Same as 1 Down.
  4. A prime number.
 
Down
  1. A prime number.
  2. Twice the value of 3 Across.
  3. 4 Across - 2 Down.
  4. A prime number.
 
Hint:  The three prime numbers are all unique.
 
 
Subpages (1): Binary Primes Solution
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