A376705 a(n) = smallest 4-brilliant number (A376704) with n decimal digits.
16, 100, 1029, 14641, 100529, 1000109, 10005647, 104060401, 1000002847, 10000000861, 100000024219, 1036488922561, 10000000051429, 100000000009729, 1000000000011799, 10028029413722401, 100000000000035241, 1000000000000012861, 10000000000000080101, 100012000540010800081
Offset: 2
Examples
a(6) = 100529 because 100529 = 11 * 13 * 19 * 37 is the smallest 6-digit number with four prime factors having the same number of digits.
Links
- Dario Alpern, 4-Brilliant Numbers.
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