Unique counting

The smallest number with 15 and 33 as divisors (165).

How Strange?

Triple Strange!

Team number 15 33

The smallest Roman numeral with five distinct symbols and no subtraction. (CLXVI=166)

The world record for the greatest number of top-level singles tennis titles in the Open Era. (167, Martina Navatilova)

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Number of hours in a week.

7 x 24 = 168

The first number of an automatic IPv4 address assigned by TCP/IP when no external networking device is contactable. (169)

The largest number whose factorial can be stored in IEEE 754 double precision (64 bit) floating point format. (170;170!≈7.257415615307999∗10^306).

All 307 digits

7257415615307998967396728211129263114716991681296451376543577798900561843401706157852350749242617459511490991237838520776666022565442753025328900773207510902400430280058295603966612599658257104398558294257568966313439612262571094946806711205568880457193340212661452800000000000000000000000000000000000000000

The smallest palindromic 3 digit number whose digits sum to the square of the number of digits.

1 + 7 + 1 = 9 = 3^2

The third number which is a “near miss” to Fermat’s last theorem by virtue that its cube is one more than the sum of two smaller cubes.
First case: 6^3+8^3+1=216+512+1=729=9^3
Second case: 71^3+138^3+1=357,911+2,628,072+1=2,985,984=144^3
This case: 135^3+138^3+1=2,460,375+2,628,072+1=5,088,488=172^3

The smallest prime of the form 2^p + p^3, where p is prime.
2^2+2^3=12, not prime
2^3+3^3=35, not prime
2^5+5^3=173, prime.

The number of twin prime pairs in the first thousand primes. (174)
The 1000th prime is 7919, the 1001st is 7927.

The 174 nexi (numbers between each prime pair) are:

4, 6, 12, 18, 30, 42, 60, 72, 102, 108, 138, 150, 180, 192, 198, 228, 240, 270, 282, 312, 348, 420, 432, 462, 522, 570, 600, 618, 642, 660, 810, 822, 828, 858, 882, 1020, 1032, 1050, 1062, 1092, 1152, 1230, 1278, 1290, 1302, 1320, 1428, 1452, 1482, 1488, 1608, 1620, 1668, 1698, 1722, 1788, 1872, 1878, 1932, 1950, 1998, 2028, 2082, 2088, 2112, 2130, 2142, 2238, 2268, 2310, 2340, 2382, 2550, 2592, 2658, 2688, 2712, 2730, 2790, 2802, 2970, 3000, 3120, 3168, 3252, 3258, 3300, 3330, 3360, 3372, 3390, 3462, 3468, 3528, 3540, 3558, 3582, 3672, 3768, 3822, 3852, 3918, 3930, 4002, 4020, 4050, 4092, 4128, 4158, 4218, 4230, 4242, 4260, 4272, 4338, 4422, 4482, 4518, 4548, 4638, 4650, 4722, 4788, 4800, 4932, 4968, 5010, 5022, 5100, 5232, 5280, 5418, 5442, 5478, 5502, 5520, 5640, 5652, 5658, 5742, 5850, 5868, 5880, 6090, 6132, 6198, 6270, 6300, 6360, 6450, 6552, 6570, 6660, 6690, 6702, 6762, 6780, 6792, 6828, 6870, 6948, 6960, 7128, 7212, 7308, 7332, 7350, 7458, 7488, 7548, 7560, 7590, 7758, 7878

Roughly 5.54 times the percentage of posts by Gus here ((60/190)*100, roughly equals 175

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