16
the sum of the first 15 prime numbers is 328 .
The first 12 composite numbers are.... 4,6,8,9,10,12,14,15,16,18,20,21,A composite number is basically any number that can go into that number, so like 15 is a composite number because 15x1=15,and then 5x3=15. That's two or more pair of numbers.
First five whole numbers are: 0 1 2 3 4
The first 15 prime numbers are 2, 3, 5, 7, 11 ,13, 17, 19, 23, 29, 31, 37, 41, 43, and 47.
They are 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 and 16.
In base 3, the counting numbers are represented using the digits 0, 1, and 2. The first 15 counting numbers in base 3 are: 0, 1, 2, 10, 11, 12, 20, 21, 22, 100, 101, 102, 110, 111, and 112. Each place value increases by powers of 3, similar to how place values increase by powers of 10 in the decimal system.
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.
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.