An Interesting Pattern To Solve...
Level
pending
21, 32, 53, 74, 115, 136, 177, 198, 239, X .
What is X?
888
2910
737
2019
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1 solution
This pattern is actually two patterns in one!
2, 3, 5, 7, 11, 13, 17, 19, 23, 29 ... are prime numbers.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ... are cardinal numbers.
When you find the two parts, 29 and 10, you will know that the answer is 2 9 1 0