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Type the missing number in this sequence:\newline66, _\_, 216216, 1,2961,296, 7,7767,776

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Q. Type the missing number in this sequence:\newline66, _\_, 216216, 1,2961,296, 7,7767,776
  1. Observe Pattern: Let's observe the pattern in the given sequence. We notice that each number seems to be a multiple of 66, and it looks like each subsequent number is a power of 66. To confirm this, let's check if 216216, 1,2961,296, and 7,7767,776 are indeed powers of 66.
  2. Check 216216: First, we check if 216216 is a power of 66. We can do this by repeatedly dividing 216216 by 66 until we reach 11 or a non-integer number.\newline216÷6=36216 \div 6 = 36\newline36÷6=636 \div 6 = 6\newline6÷6=16 \div 6 = 1\newlineSince we reached 11 by dividing by 66 three times, 216216 is 66 to the power of 6622 (6633).
  3. Check 1,2961,296: Next, we check if 1,2961,296 is a power of 66. We use the same method as before.\newline1,296÷6=2161,296 \div 6 = 216 (which we already know is 636^3)\newlineSo, 1,2961,296 is 646^4.
  4. Check 7,7767,776: Finally, we check if 7,7767,776 is a power of 66. 7,776÷6=1,2967,776 \div 6 = 1,296 (which we already know is 646^4) So, 7,7767,776 is 656^5.
  5. Confirm Pattern: Now that we have confirmed the pattern, we can see that the sequence is increasing by one power of 66 each time. The sequence starts with 66, which is 616^1. The next term should be 626^2, followed by 636^3, 646^4, and 656^5.
  6. Calculate Missing Number: Let's calculate 626^2 to find the missing number in the sequence.\newline62=6×6=366^2 = 6 \times 6 = 36\newlineSo, the missing number in the sequence is 3636.

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