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Three fours and one half of 4

Or if you mean using only fours and operation signs you develop methods like this:

42 - 4 + (4/4) = 13.

In words, four squared (16) take 4 (12), + the sum of 4/4, which is one (13).

Obviously, being an Prime number, 13 doesn't fit equally into four, so use a combination of different mathematical symbols to change four into many other numbers:

42 = 16

Square Root of four = 2

4! (four factorial) = 24

43 = 64

4/4 = 1

4 + 4 = 8

Combinations of these can be used to make the 13 you're after.

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Wiki User

โˆ™ 2011-04-30 03:48:20
This answer is:
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Animation Youtube

Lvl 1
โˆ™ 2022-04-13 21:31:54
that is using 5 4s because you can just get a '2' out of nowhere, '2' is โˆš4
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Animation Youtube

Lvl 1
โˆ™ 2022-04-13 21:32:24
I mean you can't a
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Animation Youtube

Lvl 1
โˆ™ 2022-04-13 21:32:50
bruh I mean you can't just get a '2' out of nowhere
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Animation Youtube

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โˆ™ 2022-04-13 21:43:01

answer is (4! * โˆš4 + 4) \ 4.

(4! * โˆš4 + 4) \ 4.

= (24*2+4) \ 4

= (48+4) \ 4

= 52 \ 4

= 13

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Tyler Carr

Lvl 1
โˆ™ 2022-09-01 21:08:16
I like how it is solved

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Boo Somnuik

Lvl 2
โˆ™ 2022-08-18 06:36:26

4! / โˆš4+(4/4)

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Q: How do you make 13 with four 4s?
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