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Erdős problem 458

Let lcm(1,,n)\operatorname{lcm}(1, \dots, n) denote the least common multiple of {1,,n}\{1, \dots, n\}. Let pkp_k be the kk-th prime. Is it true that for all k1k \geq 1, lcm(1,,pk+11)<pklcm(1,,pk)\operatorname{lcm}(1, \dots, p_{k+1}-1) < p_k \cdot \operatorname{lcm}(1, \dots, p_k)?

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