2+3=53+5=85+8=1313+21=3333 is the next number in this pattern. This pattern is called a Fibonacci.
217
35
27
27
2+3=53+5=85+8=1313+21=3333 is the next number in this pattern. This pattern is called a Fibonacci.
The next number will be 13+21 = 34
34 55 89 etc..
the next number is 21 because it is adding the last number stated.
217
21
If you mean: 1 1 2 3 5 8 13 21 then the next number is 13+21 = 34
21 The pattern is 121, 12321, 1234321
35
21
If you mean: 1 2 3 5 8 13 then the next number is 8+13 = 21
75