# 100123456789

This number is a prime.

10 0123456789

The smallest prime to contain the digit sequence 0123456789. [Gupta]

The smallest prime with the pandigital string 0123456789
that remains prime when *every* pair of adjacent
digits are wedged apart by inserting a digit
0:
1__0__0__0__0__0__1__0__2__0__3__0__4__0__5__0__6__0__7__0__8__0__9.
Note that the latter has a prime number of digits and, in
particular, a prime number of 0's. [Beedassy]

The smallest pandigital primeval prime. [Bajpai]

The first prime number examined by Mathematics, Computer Science and Chemistry teacher Paul King of Ontario, Canada, in a post titled "The Prime Curios Website" on his PK Journal.

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