10512...10231 (24-digits)

This number is a prime.

                                                  1051 2013615317 1190210231

Just showing those entries submitted by 'Gupta': (Click here to show all)

+ The smallest prime formed from concatenation of eight consecutive triangular numbers, i.e., 105, 120, 136, 153, 171, 190, 210 and 231. [Gupta]

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