Primality proof for n = 109454571331697278617670725030735128145969349647868738157201323556196022393859:

Take b = 2.

b^(n-1) mod n = 1.

54727285665848639308835362515367564072984674823934369078600661778098011196929 is prime.
b^((n-1)/54727285665848639308835362515367564072984674823934369078600661778098011196929)-1 mod n = 3, which is a unit, inverse 36484857110565759539223575010245042715323116549289579385733774518732007464620.

(54727285665848639308835362515367564072984674823934369078600661778098011196929) divides n-1.

(54727285665848639308835362515367564072984674823934369078600661778098011196929)^2 > n.

n is prime by Pocklington's theorem.