6,13,27,55, 111, 223 ... Here is why: 6 + (1x7) makes 13 13 + (2x7) makes 27 27 + (4x7) makes 55 55 + (8x7) makes 111 111 + (16x7) makes 223 Or this way explains the answer using powers of 2: (7x20)-1 makes 6 (7x21)-1 makes 13 (7x22)-1 makes 27 (7x23)-1 makes 55 (7x24)-1 makes 111 (7x25)-1 makes 223
Chat with our AI personalities
To determine the next two numbers in the pattern 6, 13, 27, 55, we need to identify the relationship between the numbers. This pattern is increasing at a non-linear rate. The next two numbers can be found by multiplying each number by 2, then adding 1 to get the next number. Applying this rule, the next two numbers in the pattern are 111 and 223.
21 and 13. The pattern is t(n) = (-n4 + 10n3 - 23n2 + 38n - 12)/12
prime numbers - next number is 13
This list of numbers is the list of prime numbers. Following 11, the next two numbers in the list are 13 and 17.
With only two numbers it is difficult to find a pattern but I would imagine that this is a simple one since those are the only two numbers provided. If you do 21-13=8 you see that the difference is 8 so therefore, you would add 8 to each continuing number of the sequence. The pattern would be 13, 21, 29, 37, 45, 53, 61, 69
The numbers are increasing by increments of 13 and so the next number is 61+13=74