Is 3^2019 - 2^2019 a prime number?

Answer: No, of course not.​ A number of the form a^n-b^n is very rarely prime.​.​.​ Long's Digest Top Stories For You Is 3^2019 - 2^2019 a prime number? Alon Amit, PhD in Mathematics; Mathcircler. Written Dec 16 No, of course not. A number of the form [math]a^n-b^n[/math] is very rarely prime. For any positive integers [math]a,b,n[/math], [math]a^n-b^n[/math] is divisible by [math]a-b[/math]. This in and of itself isn't significant here: it just says that [math]N=3^{2019}-2^{2019}[/math]...  Read More » Why did you quit using C++? Mike Laursen, Been around the Computer Programming block Written Oct 14, 2018 I spent a decade working on Adobe Acrobat/Reader, which is written in C++. Shortly after we shipped Acrobat 11, the entire San Jose development organization were told that ...  Read More » Of the four Iowa class battleships, which is currently in the best condition? Celso Morrison Updated Dec 23 Definitely not the Iowa. Her Turret 2 breech explosion that killed 47 sailors has never been repaired; although all the replacement parts are on board. Probably not the New ...  Read More » Why do car salesmen use techniques like disappearing to talk to their manager five times during a car sale? I see it as a marketing gimmick and walked out once. Larry Golden, Branch Manager at CTDI (2019-present) Written Dec 30, 2018 $469.00 per month with 7Yr/70,000 Mile Warranty. That was the first pencil that was put on my sales sheet to present to the customer. I was in shock. But, boss I said they w...  Read More » What is your review of Star Wars: Episode IX? Charles Bailey, Star Wars Fan Since Childhood Written Dec 20 I saw this movie for the first time at a Thursday night preview. Aside from there being no sound for the first six minutes (the theatre restarted the movie for us) and peop...  Read More » Why did people starve on ships in the 1500s when there was fish all around them? Aaron Bosen Updated Dec 22 A big factor of it is an event that sailors of the time called "becalming". What's that you might ask? It's when the wind required to allow a sailing ship to transit stoppe...  Read More » Is it true you can hold plutonium or uranium in the palm of your hand with no ill effects? Tim Cole, Nuclear history enthusiast, worked in the nuclear power industry Updated Nov 23 If you're holding a piece of uranium, you're likely to notice little more than its great density. A piece light enough to be held easily in the palm of your hand won't be very big. ...  Read More » Does Tesla pay a fair price for vehicle trade-ins? Kevin Davidson, Drives an electric car Updated Aug 12 I have an anecdote. I attempted to trade in a 2007 Prius with 144,000 miles on it when I bought my Tesla Model S in 2016. They offered $2,100 for it before inspecting it. I...  Read More » How come the BUD/S is 3 times as long as RASP when rangers also go on very risky special operations? Why does RASP not have their own version of "hell week"? Dain Adams, B.A. Psychology (2018) Written Dec 18 Austin Lazar's answer is perfect. One thing I'd like to add though… a third of BUD/S is focused on training the students how to be competent combat divers. Seven full weeks ...  Read More » In WW2, why did German handguns look different than all the other handguns at the time? Kevin Oliver, Have studied military history and equipment all my life. Written Jun 6 In WW2 why did German handguns look different to all the other handguns at the time? They didn't. With their exposed barrels, the P08 and P38 looked different to the US M191...  Read More »   Read More in Your Feed Follow Quora on: Get the App for iOS and Android This email was sent by Quora (650 Castro Street #450, Mountain View, CA 94041). If you don't want to receive this type of email in the future, please unsubscribe.http://www.quora.com/