# 601

00601 is the smallest assigned 5-digit ZIP Code that is prime. It belongs to Adjuntas, PR. Note that Adjuntas is also known as "La Suiza de Puerto Rico" (the Switzerland of Puerto Rico) because of its low temperatures. [Wolfe]

The PowerPC 601 Microprocessor is a highly integrated single-chip processor that combines a powerful RISC architecture, a superscalar machine organization, and a versatile high-performance bus interface. Superscalar refers to microprocessor architectures that enable more than one instruction to be executed per clock cycle.

6-0-1 are the first three digits of 5^{117} and 106 * 5^{117} + 117 is prime. [Kulsha]

The aliquot sequence that starts with 446580 ends (4736 iterations later) with 601. [Creyaufmueller]

601 is the smallest number m such that 6^2^k + m^2^k is prime for k = 0, 1, 2, 3, and 4. [Firoozbakht]

In the Arnold Schwarzenegger movie "Total Recall," the license plate number of Cohaagen's henchmen during the earth-bound chase is 601.

The smallest prime in the only case of eleven consecutive 3-digit primes with distinct digits. [Loungrides]

"And it came to pass in the **six hundredth and first** year,
in the first month, the first day of the month, the waters
were dried up from off the earth: and Noah removed the
covering of the ark, and looked, and, behold, the face of
the ground was dry." (*Genesis* 8:13, KJV) [Thompson]

The smallest invertible prime of the form (5n^2 + 5n+2)/2. Can you find another? [Loungrides]

The one hundredth positive integer that contains exactly one zero. [Gaydos]

The smallest invertible prime that is the sum of the reversal of the cube of first three primes: R(2^3) + R(3^3) + R(5^3), i.e., (8 + 72 + 521). [Bajpai]

601 is the (10^n)-th prime that contains exactly n zeros, case n=1. The sequence begins 2, 601, 40099, 2009407, 100813007, 5726000003, 204000172007, ... . [Gaydos]