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Earn +20 ptsQ: How do you make 31 using only the number 4?
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What can you mulitply to get 31?
31 is prime so you can only multiply 1 and 31 to get 31. Using non-whole numbers you can get an infinite number of different options. For instance, 15.5 times 2 will make 31. Another example: 8 times 3.875 will also make 31.
How do you get the number 29 only using 1234?
2^(4+1)-3
How Many combinations can you come up with using 31 numbers and only 5 number combinations?
The answer is 31C5 = 31!/[26!5!] = 169,911
Can you make the number 18 using only 8 4 2 and 1?
You can make every number up to 15 using only 8, 4, 2, and 1 .If you want to expand your horizons all the way to 18, you'll need the next onein the same series. That's 16. Once you have that, you'll be able to make everynumber up to 31 .
How do you get the number 25 using 1234?
to get the number 25 using 1234 = 31 - 2 - 4
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