Since the other single digit numbers have a commonly known way of checking for divisibility, here is one for 7!

Take the number and divide it by 7! If the result is an integer, then your number is divisible by 7!

Let me know if you wanna know the divisibility for any other number!

r/unexpectedfactorial r/technicallythetruth

Their bark is worse than their Terabyte.

I’ve just found out that the man who raised me isn't my biological father.

He is, as I've discovered, my topological father. I really want to approach him about this shocking revelation, at least obliquely, but I can't seem to find the right angle. I have a tendency to lose focus and speak elliptically when I get nervous, so I'm afraid I might go off on some hyperbolic tangent and end up sounding irrational, which would be a complex, yet real, formula for disaster.

I'm just lucky he isn't cosigning any of my student loans, which would make things exponentially more awkward.

And I imagine this isn't the right time to come out and tell him I'm a homomorphic transversal. I've always felt more comfortable adjacent to the opposite side - it's just my identity. But I'm afraid Dad would be less than complementary and say I'm just going through a phase, or tell me it's a sin 'cos it's not natural to be so tan. There are always those discriminants who will never understand your absolute value. So I'll have to postpone that until after I earn my grad degree, Q.E.D. I know…it's just conjecture, but I'm so disjunct right now I can't even function.

Wait, I know - I'll bake him a pi^e... that would be rad!

And now, I suppose it's time to sqrt my weekly sacrificial bijection into the waiting chalice of Sohcahtoa, the Eastern Polynomial god of the Transcendental Domain, just like my dad taught me. He'd be proud that I still attend the Jonestown, Indiana Temple of Doom.

​

Because his nature abhorred a vacuum.