@kckcmctcrc
Had to look up ‘Units digit’, have always called this the ‘ones digit’.
@jaezryl
The first problem I usually encounter as a non-native english speaker is figuring out math terminologies. Like, what the hell is Units digit?
@anderslvolljohansen1556
4^854 = 16^427 Since 6×6=36, any time you multipy two integers that end with digit 6, the product will also end with 6. Multiplying the product by a third integer ending with 6 must therfore also result in a new product ending with 6, etc. 4^854 = 16^427 is the product of 427 integers all ending with digit 6 and must therefore also end with digit six.
@melmelcatho290
I swear I'm learning more in YouTube shorts than in school 💀
@shreyaghosh6246
a simple trick: just multiply the base to the last digit. here, it would be 4*4 = 16. hence, 6 is in the unit's place. This helps because in Multiplication the last digit doesn't change. For example:
12
* 12
—
24
+120
—
144
@rosegocheva3309
It's fun learning the terms in math in English. Your channel is great
@marianorodriguez13
Its clear that it is enough to check what happens mod 5, then: 4^854=(-1)^854=1 And the only possibility which is 1 mod 5 is 6.
@Fillster
I didn’t even know what a units digit was
@somethingbanter
When you start thinking of it as a logic puzzle instead of a math problem that is the secret to solving a lot of math problems.
@NastyG27
I can’t wait to use this in the real world!
@Crazy33749
I'm actually enjoying math with this guy
@nishchaysharma5904
When life is less about solutions but more about patterns.
@islamictv6475
If even power of 4 = unit digit 4 If odd power of 4 = unit digit 6
@RealRabidRabbit
I used to not like math at all. Now that I'm far beyond math in my studies, seeing these shorts every so often is actually very interesting!
@JJ_TheGreat
Brilliant! I never would have picked up on this pattern! Thank you!
@4443Cosmic
“Hmm, I haven’t picked D in a while so…”
@Impractical-nd1ss
I still get SAT prep videos after all these years. I need GRE prep videos now.
@pradap2298
I need reincarnation to learn math again
@emmak8961
한국에선 문제를 풀고 답을 고르는데 답으로 문제에 접근하는 모습이 새롭네요
@mecden1766