The Hungarian deli ran out of rum balls and the lady behind the counter didn’t call me honey, sweetie, luv, etc.
I am at a non-usual sbux: they are doing some repairs to one of the bathrooms and there is a whiff of terlet that is drifting past me!! Hoofahhhhh!!!
Sounded like she ran out of the sweet nothings.
I erased “it seems you didn’t understand my email” and replaced it with “it seems my email wasn’t clear.”
did you remember to erase " you stupid ass"?
I am one of the people with a package stuck in the black hellhole of Indy’s USPS regional distribution center. “Weather delays” yeah ok. I googled it, apparently this is a whole thing right now.
Why, because 1 is listed as a prime number?
I was always taught that 1 was prime and have never understood the objections to calling it prime. It’s the most trivial of all primes, but prime. At least in my school books
I am more perturbed by definitions of trapezoids that purposely omit parallelograms.
All the formulas for trapezoids work perfectly well on parallelograms. There’s no valid reason to not consider parallelograms a subset of trapezoids.
Just like equilateral triangles are a subset of isosceles triangles. No one disputes that, but call a parallelogram a trapezoid and hoo boy, that’s controversial.
A prime is not divisible by “1 and itself”. A prime is divisible by exactly two whole numbers.
1 does not qualify. And 1 is not a “building block” of other numbers. It’s simply the multiplicative identity.
[red] I don’t think you and I can be friends anymore [/red]
I think my objection boils down to “it’s too trivial “ and mucks up the rest of math’s definitions if you include it.
I dunno, that’s how I was taught from whenever I first learned about prime numbers… I think through college although conceivably it never came up in college.
I believe I was in my 40s when I became aware of the existence of numerate individuals who considered 1 to be not prime.
Can’t undo 40 years of thinking of it as prime, sorry. “Itself” IS 1.
1 is divisible by 1.
1 is divisible by itself.
1 is not divisible by anything else.
Ergo, 1 is prime.
That’s what I was taught. Granted, I was not in the fanciest of school districts, but it was also in the textbooks that way.
Can we at least agree that parallelograms are trapezoids?
I’m not sure we can even agree on that.
This has been the worst Friday ever.
Honestly, though, I have no preference to a trapezoid being defined as “only one pair” of parallel sides vs “at least one pair”. However, to be doubly honest, I prefer the former.
That’s why I pointed out that the whole “divisible by itself and 1” is poor phrasing and not the actual definition. Because that phrasing clearly implies that 1 is prime.
When you did the prime factorization of a number in school, how many 1’s were in your answer? Hopefully zero, because 1 isn’t a prime factor (you know, because it’s not actually a prime number, and all that jazz)
And sure, go ahead and call a parallelogram a trapezoid (and a square a rectangle while we’re at it). All the formulas and properties still apply (along with a few extras), so no problems there.
Lol. This forum really is where fun goes to die.
I totally agree, just not sure why we are all getting jumped up over it.
Why were you taught this in high school?
I assume you did higher level math in College…they covered this.
It is really just a definition. My earliest memories of primes always had 1 omitted. However, more recently I learned that 1 is not omitted from all lists of primes (not just by people who are mistaken), and there are reasons why it might be included. Let me see what I can turn up real quickly.
Oh, a history
Reasons it is excluded include the fundamental theorem of arithmetic would have multiple factorizations if 1 was counted as a factor (since it is the multiplicative identity element), and using it in Eratosthenes’s sieve would cause all numbers to fail to be prime (since all are divisible by 1).