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Let $b$ be a positive integer such that $2 \leq b \leq 10$. In this study, wefind all Pell or Pell-Lucas numbers as concatenations of two repdigits in base$b$. As a corollary, it is show that the largest Pell or Pell-Lucas numberswhich can be expressible as a concatenations of two repdigits in base $b$ are$P_{11} = 5741$ and $Q_5 = 82$, respectively.

Pell or Pell-Lucas numbers as concatenations of two repdigits in base $b$