no No it is not. The first 5 triangular numbers are: 1, 3, 6, 10, 15
The first two triangle numbers are 3 and 6. [Unless you start with 1 as the first.]
The first twelve triangular numbers are: 1 3 6 10 15 21 28 36 45 55 66 78
The first six triangular numbers are 1, 3, 6, 10, 15 and 21.
1+3+6+10 =20
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.
No. The first few triangular numbers are 1, 3, 6, 10, 15, 21, 28, ...
The first six triangular numbers are : 1,3,6,10,15,21. However, sometimes the first triangular number is regarded as 0 (zero) so you then have 0,1,3,6,10,15 as the first six triangular numbers.
1, 3, 6, 10, 15, 21
1-3-6-10-15-21-28-36
8,9,5,7,2 and 1
It is 46.
1, 3 and 10.
The triangular numbers between 1 and 66 are: 3, 6, 10, 15, 21, 28, 36, 45 and 55.
a: any number between 1 and 325670
6 and 10 are triangular numbers that make 16.
They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.