All Questions
Tagged with formation-of-numbers primes
6
questions
10
votes
4
answers
2k
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A Prime Number equation using all nine digits once
Create an equation with the following conditions
All numbers must be one or two digit prime numbers
You can only use + and - and =
No other math operators
You must use all the nine (single) digits (...
- 6,627
4
votes
2
answers
241
views
Using Prime numbers to get 100 and 1000
Using the digits 1 to 9 exactly once create a set of one or two digit prime numbers.
Use those prime numbers and the math operations + - / * and
parantheses to get 100.
Then use those exact same ...
- 39.4k
7
votes
0
answers
312
views
Even and primes puzzle?
These are secret numbers that increase regularly. What are the next two numbers?
If you like numbers, it will be fun.
$2^3 \times224299$
$2^2 \times 3^2 \times 19 \times 3557$
$2 \times 5 \times ...
- 71
8
votes
2
answers
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Prime to number conversion
This puzzle relates to Prime to Prime: Get all first 25 Prime Numbers using up to 4 Primes and its sequel Prime to Prime Sequel
Using any three of the first 4 prime numbers (2,3,5 and 7) and the
...
- 39.4k
15
votes
2
answers
505
views
Prime to Prime Sequel
This question is inspired by the Prime to Prime puzzle.
The first 24 Prime Numbers are
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89
Using up to 4 prime ...
- 138k
18
votes
4
answers
3k
views
Prime to Prime: Get all first 25 Prime Numbers using up to 4 Primes
The first 25 Prime Numbers are
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97
Using up to 4 prime numbers and the following mathematical operations, get all the 25 primes.
+ ...
- 39.4k