Creativity test

Nicky · Post by **Nicky** » 20-07-2005 17:46

Nickspoon got mine right but the wrong way

I said to make A cube not to make cube.
But yes you do add those three there to make the number 8 which is a cube number

2^3

Post by **Kisa** » 20-07-2005 17:48

He made "a cube"!

Nicky · Post by **Nicky** » 20-07-2005 17:50

Yes

but thats not what it meant

This one is GREAT

What is the next number?

12,215,308,523,345,916

Post by **Kisa** » 20-07-2005 18:33

Hmmmm ... it's 12215308523345916 = 2 * 2 * 3 * 73 * 1367 * 3907 * 2610889 (a nice big prime number

), but that doesn't help me much ...

Post by **Kisa** » 20-07-2005 18:35

12,215,308,523,345,917?

Nicky · Post by **Nicky** » 20-07-2005 18:35

Its so obvious

Yes thats the answer

frkyjenn · Post by **frkyjenn** » 20-07-2005 18:38

Ok, I'm confused.

Explain it to me please.

Nicky · Post by **Nicky** » 20-07-2005 18:39

Add one to the very large number

Nicky · Post by **Nicky** » 20-07-2005 18:40

Ok this one is EVIL

Which number is the odd one out?

1553 1892 2137 3649 6397 4085 2464 4585 4868 4276

frkyjenn · Post by **frkyjenn** » 20-07-2005 18:41

I hate numbers

Nicky · Post by **Nicky** » 20-07-2005 18:42

Ill post a wordo ne once this ones been got

Post by **Kisa** » 20-07-2005 18:44

6397 > 5000

Got it!

All the numbers are built up like this:

n1n2 = n3 * n4

and 4585 doesn't fit (45 != 8 * 5)

Nicky · Post by **Nicky** » 20-07-2005 18:46

No thats too vague you could use the same reasoning for any of the other numbers

Post by **Kisa** » 20-07-2005 18:47

No, that works for every other number in the list:
1553: 15 = 5 * 3
1892: 18 = 9 * 2
2137: 21 = 3 * 7
3649: 36 = 4 * 9
6397: 63 = 9 * 7
4085: 40 = 8 * 5
2464: 24 = 6 * 4
4868: 48 = 6 * 8
4276: 42 = 7 * 6

frkyjenn · Post by **frkyjenn** » 20-07-2005 18:48

It's way to early in the day for me to be doing maths.