//create array of dictionary"
let interestingNumbers = [
"Prime": [2, 3, 5, 7, 11, 13],
"Fibonacci": [1, 1, 2, 3, 5, 8],
"Square": [1, 4, 9, 16, 25],]




// numbers for array value
var largest = 0
 for (kind, numbers) in interestingNumbers {  // loop key and value from array dictionary
   for number in numbers {
     if number > largest {
        largest = number
       }
   }
 }
 print(largest)