The next number is 485.
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Try: 161+324 = 485 would seem to fit the pattern
To get the number to complete the sequence, multiply the first number to 3 and then add 2 to get the next number. Given 1, 5, 17, 53, 161 ____Solution:1 x 3 (+2) = 55 x 3 (+2) = 1753 x 3 (+2) = 161161 x 3 (+2) = 485Therefore, the number to complete the sequence is 485.
As the sequence is going up, you multiply the previous number by 3 and add 2. Therefore, the next number in the sequence is equal to 161 x 3 + 2 = 425.
485
The number which best completes the sequence below is:2 9 5 13 10 19 17?