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How do you find at least 6 math equations using only 6 fours to make it equal any prime number in between 1-100?
Wiki User
∙ 11y ago
The primes required are:
2 = (4+4)/4
3 = (4+4+4)/4
5 = (4+4+4+4+4)/4
7 = (4*4+4+4+4)/4
11 = (4(4*4-4)-4)/4
13 = (4*(4*4-4)+4)/4
17 = (4*4*4+4)/4
19 = (4*(4*4+4)-4)/4
23 = (4*(4*4+4+4)-4)/4
29 = (4*(4*4+4+4+4)+4)/4
31 = (4*4*(4+4)-4)/4
37 = (4*4*(4+4)+4*4+4)/4
41 = (4^4-4*(4*4)+4)/4
43 = (4^4-4(4*4+4+4))/4
47 = (4^4-4*4*4-4)/4
The remainder are left as an exercise. It should be noted that most of these are impossible to express with only six fours without either defining new operators or allowing for facetious, unmathematical cheats such as allowing 44 to be used.
Wiki User
∙ 11y ago
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What is the difference between the values of fours in the number 34746?
4000 = 40 = 3960
How do you get 77 out of 4 fours?
To achieve the number 77 with four fours, the solution is as follows: sqrt(4/.4)4 - 4 Instead of the second four being equal to four tenths, place a dot over the top to indicate it being equal to four ninths.
How do 4 fours equal 5?
(4x4+4) / 4=5
What does 4x 2 equal?
8. The function of "times" is to add that number to itself by the second number. So the 4x2 means that you add two fours together. 4x3=12...4+4+4. See how it works?
How can you arrange four fours to make 33?
A solution to the four fours problem for the number 33 is: 33 = (4-.4)/.4+4!
What is the difference between the values of fours in the number 34746?
4000 = 40 = 3960
What equations using four fours equals seventeen?
4*4+4/4 = 17
How do you get four fours to equal 10 you can have decimals?
2.5x4
How do you get 77 out of 4 fours?
To achieve the number 77 with four fours, the solution is as follows: sqrt(4/.4)4 - 4 Instead of the second four being equal to four tenths, place a dot over the top to indicate it being equal to four ninths.
How can four fours equal twenty three?
four fours equals 24 not 23. or if u meant four 4ths, then it's 256.
How do 4 fours equal 5?
(4x4+4) / 4=5
What is the missing number in this line from pascal's triangle 1 4 4 1?
A 6 should be placed between the fours.
Use 3 fours that equal 55?
{4! - sqrt(4)}/.4
Is three fours equal to nine twevles in fractions?
Three fours (12) is not equal to nine twelves (108). However, three over four (3/4) is equal to nine over twelve (9/12) which are known as equivalent fractions to each other.
What is eleven fours and a mixed number?
8465*65
How can make 5 fours equal five?
4/4 + 4 × 4/4
How do you make four fours equal 17?
4*4+4/4 = 17
