Pn 295 Recycler
Crystalline Quantum Shelving
Scion of the Light: 2nd Sighting
71 is the 20th prime number. Because both rearrangements of its digits (17 and 71) are prime numbers, 71 is an emirp and more generally a permutable prime
In some traditions, 70 years of marriage is marked by a platinum wedding anniversary.
Visually, in Arabic numerals, 69 is a strobogrammatic number because it looks the same when viewed both right-side and upside down
68 is the largest known number to be the sum of two primes in exactly two different ways: 68 = 7 + 61 = 31 + 37. All higher even numbers that have been checked are the sum of three or more pairs of primes; the conjecture that 68 is the largest number with this property is closely related to the Goldbach conjecture and, like it, remains unproven.
67 is the 19th prime number, a Chen prime....nah
