i have an idea can someone help?
No, because the list is infinite. However, you can find them for yourself since the nth triangular number is n(n+1)/2
List of triangular numbers 1,3,6,... work out the rest
None. There is nobody to whom triangular numbers belong.
Nope Triangular numbers are 1,3,6,10,15,21,28,36
It gets the middle value of a list of values. If you have a list of numbers, it returns the middle value as if they were in numerical order. If there is an odd amount of numbers, then it will give you one of the numbers that is in the list. If there are an even amount of numbers, then it will give the number halfway in value between the two middle numbers.
The answer would be 15 and 21. The triangular numbers are 1,3,6,10,15,21,28,36,45,55,66,78. 15 plus 21 is 36 which is on the list. 21 minus 15 is 6 and that is on the list as well.
-1999
No, because the list is infinite. However, you can find them for yourself since the nth triangular number is n(n+1)/2
List of triangular numbers 1,3,6,... work out the rest
None. There is nobody to whom triangular numbers belong.
18 prime numbers
1, 3, 6, 10, 15, 21, 28, 36
Triangle numbers or triangular numbers are those numbers that can form an equilateral triangle when counting the objects. The first five triangular numbers are: 1, 3, 6, 10, 15.
6 and 10 are triangular numbers that make 16.
The list is far too long to list here (millions of them); a search on "list of prime numbers" can quickly give you the desired prime numbers.
Nope Triangular numbers are 1,3,6,10,15,21,28,36
1,36,1225,41616,1413721