10010...00109 (186-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

                          100109 1001091001 0910012910 0129100129 1001511001
5110015110 0153100153 1001531001 6910016910 0169100183 1001691001 6910016910
0153100153 1001531001 5110015110 0151100129 1001291001 2910010910 0109100109

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

The smallest prime greater than a googol formed from the concatenation of n consecutive n-digit primes in the pattern {a, a, a, b, b, b, c, c, c, d, d, d, e, e, e, f, e, e, e, d, d, d, c, c, c, b, b, b, a, a, a}, i.e., {100109, 100109, 100109, 100129, 100129, 100129, 100151, 100151, 100151, 100153, 100153, 100153, 100169, 100169, 100169, 100183, 100169, 100169, 100169, 100153, 100153, 100153, 100151, 100151, 100151, 100129, 100129, 100129, 100109, 100109, 100109}, (case n=6). [Bajpai]