They are 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 and 16.
1+1+1+1+1+=5 * * * * * The question did not ask for the sum of the first counting number five times! The sum of the first 5 counting numbers is 1+2+3+4+5 = 15. Such sums are known as triangular numbers.
001, 002, 003, 004, 005, 010, 011, 012, 013, 014, 015, 020, 021, 022 and 023.
1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 20, 21...
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.
They are 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 and 16.
1+1+1+1+1+=5 * * * * * The question did not ask for the sum of the first counting number five times! The sum of the first 5 counting numbers is 1+2+3+4+5 = 15. Such sums are known as triangular numbers.
001, 002, 003, 004, 005, 010, 011, 012, 013, 014, 015, 020, 021, 022 and 023.
1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 20, 21...
They are, 1, 10, 11, 100, 101, 110, 111, 1000, 1001, 1010, 1011, 1100, 1101, 1110, 1111.
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.
The first 15 numbers in base 2, alongside their decimal equivalents, are:1: 12: 103: 114: 1005: 1016: 1107: 1118: 10009: 100110: 101011: 101112: 110013: 110114: 111015: 1111Keep in mind that in other bases other than base 10, the numbers are spelled out in digits, for example, 1101 is pronounced "one one oh one" rather than "one thousand one hundred and one".
1 , 2 , 3 , 4 , 5, 6, 10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 24, 25, 26.
Real numbers, Rational numbers, Integers, Counting numbers, Composite numbers, multiples of 5.
18
16
10. They are 5, 15, 25, 35, 45, 55, 65, 75, 85 and 95.