15132...49071 (32-digits)

This number is a prime.

                                         15 1322281731 7015253111 5923249071

The largest known (August 2003) prime 13-tuplet starts with this prime: 129017282*65# + 3001560376931 {+ 0, 2, 6, 8, 12, 18, 20, 26, 30, 32, 36, 42, 48}. [Alm , Andersen]