Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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what i want to know is there any more method of factoizing them

no i mean like (2^2n)-1 = ((2^n)-1)*((2^n)+1)

**henryzz**- Replies: 5

what are the methods for finding algebraic factors of (2^n)+-1

thanks can someone else find something more

**henryzz**- Replies: 2

my dad is writing an unlimited digit integer

he cant understand how to use the fast fourier transform method to do arithmatic

he has a A level in maths could someone explain or find a website that explains it for his level

can anyone find a foctorizer that goes to 2^64

we usually have over 50 guests and very few regestered people

there is nothing being continuously answered really

i mean things like count to 1000, war of the world

**henryzz**- Replies: 10

could we have a spam section for games and spam

223243

223247

223253

223259

223273

223277

223283

223291

223303

223313

sorry

214003 ... 223229

213067

104759

37 now we can at least read each other

can we please post the number in numerals

19

if we r going to do that can we post the numeral and what language

7- سبعة, سبع arabic

my number 10!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

work that out!!!

i have tried transposing terms and i get X² =dY² ± 1 which is just x and y swapped except that it is ±1 instead of +1

this puzzle's equation is

in the past i have only got to about 200 so i want to see how high we can get here

**henryzz**- Replies: 55

Post the next prime lets see how high we can get.

2

i have now worked out up to 300 except for things i cant find

what i want is a list showing what the anwer to each number is

this was a puzzle written by Arcamedis and later written about by Dudeney it is not a literal battle

it was a perfect square

the army bit is just to make it a more fun puzzle

when will i get solutions