14142...53459 (225-digits)

This number is a prime.

                                                            14142 1356237309
5048801688 7242096980 7856967187 5376948073 1766797379 9073247846 2107038850
3875343276 4157273501 3846230912 2970249248 3605585073 7212644121 4970999358
3141322266 5927505592 7557999505 0115278206 0571470109 5599716059 7027453459

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A prime formed from the first 225 digits in the decimal expansion of the square root of 2. [Gupta]