What is the next number in the following series; 1, 3, 8, 19, _____?
What is the next number in the following series; 1, 3, 8, 19, _____?
Explanation
Let's recheck the pattern:
1 + 2 = 3
3 + 5 = 8
8 + 11 = 19
19 + 23 = 42
The differences between terms are increasing by prime numbers (2, 5, 11, 23...).
If the pattern continues:
1, 3, 8, 19, 42