Derek

12438414054641307255475324325873553077577991715875414356840239582938137710983519518443046123837041347353107486982656753664000000000000000000000 years young

[Derek @MathAuthority]

@taylorda01 @edsouthall You cut me deep just now Dave. Real deep.

[Derek @MathAuthority]

Rare colour photo of Leibniz

[Derek @MathAuthority]

Excellent real life proof. Pizza examples work well too🍕🍰

[Derek @MathAuthority]

Today is a palindronic date: 12921.
The largest known palindronic number is 999991999999

[Derek @MathAuthority]

A prime number is only divisible by itself, 1 and 17

[Derek @MathAuthority]

@edsouthall Four number bonds to ten

[Derek @MathAuthority]

Nice use of L’hopital’s rule here

[Derek @MathAuthority]

Prime

[Count von Count @CountVonCount]

Three thousand one hundred fifty two!

[Derek @MathAuthority]

Very efficient. Excellent math.

[Derek @MathAuthority]

@diegorattaggi it is a trick question as they are unequal 👇

[Derek @MathAuthority]

@BossGercek my solution