number system

123456
Across
  1. 2. FOUR TWO DIGIT PERFECT SQUARE NO WHICH IS PERFECT CUBE ALSO
  2. 3. THOUSAND FIVE HUNDRED AND TWENTY THE SMALLEST NO WHICH IS DIVISIBLE BY ALL DIGITS 1 TO 10
  3. 5. SEVEN LARGEST TWO DIGIT PRIME NO
  4. 6. HUNDRED TWENTY ONE SMALLEST 3 DIGIT PALINDROME PERFECT SQUARE
Down
  1. 1. HUNDRED NINTY SEVEN THE DIFFERENCE BETWEEN LARGEST AND SMALLEST THREE DIGIT NO
  2. 4. THOUSAND SEVEN HUNDRED TWENTY NINE RAMANUJAM NO