boys v girls - Part 2

[tango]

665857 × 13 × 665857 / 470832^2

 

[MarkFL]

665857 × 13 × 665857 / 470832^2

25 = 4^2 + 3^2

 

[MoreCoffee]

25 = 4^2 + 3^2

24 :lol:

 

[MarkFL]

24 :lol:

23 :read:

 

[tango]

22

 

[MarkFL]

22

21

 

[tango]

20

 

[MarkFL]

20

19

 

[tango]

19

3^2 × 2^1

 

[MarkFL]

3^2 × 2^1

17

 

[tango]

(665857/470832)^8

 

[MarkFL]

(665857/470832)^8

15 is the 5th triangular number and the 3rd pentatope number (and is the product of those ordinals). :thumbsup:

 

[ImaginaryDay2]

15 is the 5th triangular number and the 3rd pentatope number (and is the product of those ordinals). :thumbsup:

ummmmmmm... 14? :boggled: (j/k)

 

[MarkFL]

ummmmmmm... 14? :boggled: (j/k)

13 is a Wilson prime, since 13^2 divides (13-1)!+1. :bowl:

 

[tango]

13 is a Wilson prime, since 13^2 divides (13-1)!+1. :bowl:

12

 

[MarkFL]

12

11

 

[tango]

10

 

[MarkFL]

10

9 - single digits now! :eyecrazy:

 

[tango]

9 - single digits now! :eyecrazy:

8

 

[MarkFL]

8

7