1427
This number is a prime.
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The only known prime formed by the concatenation of the first terms in the Pillai sequence. Note that the concatenation of two Turkish cities, Sivas and Ankara, form a substring of his middle name (Subbayya Sivasankaranarayana Pillai). [Sariyar]
Submitted: 2021-01-28 16:38:08; Last Modified: 2021-01-28 16:49:26.
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