This number is a prime.

+ Pope Boniface VIII, author of the bull Unam Sanctam ("One Holy") stating all salvation is dependent on obedience to the Pope, died in 1303.

+ The smallest of three prime factors of the sphenic number 3474749660383 (the smallest composite number to be a strong probable prime to base 2, 3, 5, 7, 11 and 13).

+ "Apartment 1303" is a modern ghost story which turns a love hate relationship between mother and daughter into a tale of horror. [Olry]

+ Chu Shï-kié's book "Ssu Yuan Yü Chien" (Precious Mirror of the Four Elements), was written in AD 1303. [Wampler]

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