A338443 Carmichael numbers with 11 prime factors.

60977817398996785, 105083995864811041, 107473646345582881, 132819104923908481, 145671955835893201, 161802381510126721, 165167398073764801, 206063729626916161, 263076030916096321, 292433912163313921, 292561243007134465, 337365329710615921, 388219799621120545

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000 (calculated using data from Claude Goutier; terms 1..1142 from Daniel Suteu)

Claude Goutier, Compressed text file carm10e22.gz containing all the Carmichael numbers up to 10^22.

Richard Pinch, Tables relating to Carmichael numbers.

Formula

Equals A002997 intersect A069272.

Example

60977817398996785 = 5*7*17*19*23*37*53*73*79*89*233 and 4, 6, 16, 18, 22, 36, 52, 72, 78, 88, 232 all divide 60977817398996784.

Prog

(PARI) is(n)={omega(n)==11&&is_A002997(n)}

Crossrefs

Cf. A002997 (Carmichael numbers).

Cf. A006931 (Least Carmichael number with n prime factors).

Cf. A299710 (Number of terms less than 10^n).

Cf. A087788, A074379, A112428, A112429, A112430, A112431, A112432, A338442 (Carmichael numbers with 3-10 prime factors).

Sequence in context: A155057 A329223 A317164 * A083105 A246287 A115499

Adjacent sequences: A338440 A338441 A338442 * A338444 A338445 A338446

Keyword

nonn,changed

Author

Tim Johannes Ohrtmann, Oct 28 2020

Status

approved