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Erdős problem 850

Can there exist two distinct integers xx and yy such that x,yx,y have the same prime factors, x+1,y+1x+1,y+1 have the same prime factors, and x+2,y+2x+2,y+2 also have the same prime factors?

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FormalConjectures/ErdosProblems/

850.lean

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Can there exist two distinct integers xx and yy such that x,yx,y have the same prime factors, x+1,y+1x+1,y+1 have the same prime factors, and x+2,y+2x+2,y+2 also have the same prime factors?

FormalConjectures/ErdosProblems/850.leanErdos850.erdos_8505 linesExact file
Truex y,    xy      x.primeFactors = y.primeFactors        (x + 1).primeFactors = (y + 1).primeFactors ∧ (x + 2).primeFactors = (y + 2).primeFactors
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