# 735

This number is a composite.

There are exactly 735 Trotter primes less than 100,000,000. Note the first three odd primes in 735.

The smallest number concatenating its distinct prime factors: 735 = 7^2 * 3 * 5. [Post]

2^735+735 is a prime. Note that 735 is the only 3-digit
composite number *n* such that 2^*n*+*n* is a prime. [Loungrides]

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