PPL 167 / 177 permanent IDsPrize Problem Ledger · PPLChecked 2026.07.27
Prize Problem LedgerZhi-Wei Sun prizesPPL 167Sun · Alternating sums of consecutive primes

Permanent problem IDPPL 167

Source-statedIndependentconjecture

Number theory

Sun · Alternating sums of consecutive primes

For every positive integer m, find consecutive primes pₖ,…,pₙ within Sun’s stated bounds whose alternating sum pₙ−pₙ₋₁+⋯+(−1)ⁿ⁻ᵏpₖ equals m.

prime numbersalternating sumsprime bounds
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The problem

For every positive integer m, find consecutive primes pₖ,…,pₙ within Sun’s stated bounds whose alternating sum pₙ−pₙ₋₁+⋯+(−1)ⁿ⁻ᵏpₖ equals m.

Open since2012exact formulation date
Last checked2026.07.27Catalog verification
02

Reward offers

Offer 01$1,000Zhi-Wei Sun
Personal offer

The official slides offer US$1,000 for the first proof.

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Sources & reading