There are 125970 combinations and I am not stupid enough to try and list them!
Twenty factorial which is denoted by "20!". 20! = 1x2x3x4x5x6x7x8x...x19x20
Oh, what a lovely question! Let's paint a happy little picture here. To find the number of 6-digit combinations using 20 numbers, we can use a simple formula: 20P6, which stands for 20 permutations taken 6 at a time. This gives us 387,600 unique combinations to explore and create beautiful patterns with. Just imagine all the possibilities waiting to be discovered!
There are 23C3 = 23!/(20!*3!) = 23*22*21/(3*2*1) = 1,771 combinations.
20
20
There are 167960 combinations.
There are 167960 9 digits combinations between numbers 1 and 20.
Twenty factorial which is denoted by "20!". 20! = 1x2x3x4x5x6x7x8x...x19x20
Oh, what a lovely question! Let's paint a happy little picture here. To find the number of 6-digit combinations using 20 numbers, we can use a simple formula: 20P6, which stands for 20 permutations taken 6 at a time. This gives us 387,600 unique combinations to explore and create beautiful patterns with. Just imagine all the possibilities waiting to be discovered!
There are 45 combinations.
There are 23C3 = 23!/(20!*3!) = 23*22*21/(3*2*1) = 1,771 combinations.
20
20
To make 80 using numbers between 3 and 25, you can use addition, multiplication, or combinations of both. For example, the pairs (55, 25), (40, 40), and (30, 50) can be used in addition, while multiplication allows for combinations like (4 × 20) or (8 × 10). Additionally, you can find combinations of multiple numbers (like 20 + 20 + 20 + 20) to reach 80. However, the specific combinations will depend on how strictly you interpret the use of numbers.
7
To calculate the number of combinations of 5 numbers possible from 1 to 20, we use the formula for combinations, which is nCr = n! / (r!(n-r)!). In this case, n = 20 and r = 5. Plugging these values into the formula, we get 20! / (5!(20-5)!) = 20! / (5!15!) = (20x19x18x17x16) / (5x4x3x2x1) = 15,504 possible combinations.
There are many combinations of two numbers that add up to 36. One combination is 20 + 16