1, 3, 6, 10, 15, 21, 28, 36, 45, 55
Ordinary numbers
The average of the first ten prime numbers is 12.9.
3.141592653
The first ten positive numbers total 55.
The first ten happy numbers are: 1, 7, 10, 13, 19, 23, 28, 31, 32, 44
2520 is the smallest multiple of of first ten natural numbers.
Ordinary numbers
The average of the first ten prime numbers is 12.9.
3.141592653
The first ten positive numbers total 55.
The first ten happy numbers are: 1, 7, 10, 13, 19, 23, 28, 31, 32, 44
16,17,18,19,20,21,22,23,24,25.
thousands
100
38.5
-55
The numbers 4, 6, 8, 9, 10, 12, 14, 15, 16, 18 are the first ten composite numbers.