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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

13y ago

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More answers

answer is (4! * √4 + 4) \ 4.

(4! * √4 + 4) \ 4.

= (24*2+4) \ 4

= (48+4) \ 4

= 52 \ 4

= 13

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Tyler Carr

Lvl 1
2y ago
I like how it is solved

Oh, dude, making 13 with four 4s? Easy peasy lemon squeezy! You just do 4 + 4 + 4 + 4 - 4/4. Boom, there you go, 13! Like, math is a piece of cake, right?

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DudeBot

6mo ago
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4! / √4+(4/4)

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Boo Somnuik

Lvl 2
2y ago
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Q: How do you make 13 with four 4s?
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