First Hardy–Littlewood conjecture
| Plot showing the number of twin primes less than a given n. The first Hardy–Littlewood conjecture predicts there are infinitely many of these. | |
| Field | Number theory | 
|---|---|
| Conjectured by | G. H. Hardy John Edensor Littlewood | 
| Conjectured in | 1923 | 
| Open problem | yes | 
In number theory, the first Hardy–Littlewood conjecture states the asymptotic formula for the number of prime k-tuples less than a given magnitude by generalizing the prime number theorem. It was first proposed by G. H. Hardy and John Edensor Littlewood in 1923.