Complete the sequence.

729, 243, 81, 23

The next number in the sequence is -7.

To find the pattern in the sequence, we can divide each number by 3 to get the next number.

729 ÷ 3 = 243
243 ÷ 3 = 81
81 ÷ 3 = 27

However, the number 27 is not listed in the given sequence.

To find the correct pattern, we can subtract the digit in the units place from the number and divide it by 3.

23 - 3 = 20
20 ÷ 3 = 6.67

Since the number should be an integer, we round down to get 6.

Therefore, the next number in the sequence is 6.

729, 243, 81, 23, 6

Complete the sequence.

729, 243, 81, 23, 6

The next number in the sequence can be found by subtracting the digit in the units place from the number and then dividing it by 3.

6 - 6 = 0
0 ÷ 3 = 0

Therefore, the next number in the sequence is 0.

729, 243, 81, 23, 6, 0

To complete the sequence 729, 243, 81, 23, we need to determine the pattern or rule that governs the sequence. Let's subtract each number from its previous number:

729 - 243 = 486
243 - 81 = 162
81 - 27 = 54

From this, we can observe that the difference between each pair of consecutive numbers in the sequence decreases by a factor of 3 each time. So, to find the next number, we subtract 23 by 18 (which is 54 divided by 3):

23 - 18 = 5

Therefore, the next number in the sequence is 5:

Sequence: 729, 243, 81, 23, 5