[number theory] sieving with a_i mod p_i

[tommy1729]

If we sieve an interval [a,b] with 0 mod 2 , 0 mod 3 , 0 mod 5 etc
we get close to the primes in that interval.

If we sieve an interval [a,b] with 5 mod 2, 5 mod 3, 0 mod 5, 5 mod 7 , 5 mod 11 etc , we get close to the primes in the interval [a-5,b-5].

Therefore it is not so surprising the results for fixed a_i are so similar.

This is also why I say fixed a_i are less intresting.

regards

tommy1729