1011235813471123581347

This number is a prime.

                                                    10 1123581347 1123581347

The smallest prime obtained from the smallest 3-digit prime p, (p=101), using the process, “each next number is equal to the sum of its two previous digits.” Note that this prime, (not the smallest now), is also derived from the smallest double digit number n, (n=10), using the same process. [Loungrides]