Improving on a theorem of Heath-Brown, we show that if X is sufficiently large then a positive proportion of the values {n³ + 2: n ∈ (X,2X]} have a prime factor larger than $X^{1+10^{-52}}$.
Centre de recherches mathématiques, Universitéde Montréal, Pavillon André-Aisenstadt, 2920 Chemin de la tour, room 5357, Montréal (Québec) H3T 1J4, Canada