775368901

Appears in sequences

• Carmichael numbers of the form C = (30n-17)*(90n-53)*(150n-89).at n=4A182133
• Carmichael numbers of the form (60k+13)*(180k+37)*(300k+61).at n=2A182416
• Carmichael numbers whose prime factors form an arithmetic progression.at n=15A300949
• a(n) is the smallest Carmichael number k such that gpf(p-1) = prime(n) for all prime factors p of k.at n=9A327787
• Odd composite numbers k such that A111076(k)^((k-1)/2) == -1 (mod k).at n=14A329538
• Starts of runs of 3 consecutive Carmichael numbers (A002997) without a non-prime-power weak Carmichael number (A087442) between any two consecutive members.at n=20A365024