Question

Answer these questions.
A. First ten prime numbers.
B. First ten composite numbers.
C. First five odd composite numbers.
D. First five even composite numbers.

Answer 1

Hint: a. $2,3,5,7,11,13,17,19,23,29$ are the required first ten prime numbers.
b. $4,6,8,9,10,12,14,15,16,18$ are the required first ten composite numbers.
c. \[9,15,21,25,27\] are the required first five odd composite numbers.
d. \[4,6,8,10,12\] are the required first five even composite numbers.

Complete step by step solution:
For finding the first ten prime numbers , we must understand the concept of prime numbers.
Prime numbers are the numbers which have only two factors , first the number itself and second $1$ .
Therefore, $2,3,5,7,11,13,17,19,23,29$ are the required first ten prime numbers.
For finding the first ten composite numbers , we must understand the concept of composite numbers.
Composite numbers are the numbers which have more than two factors .
Therefore, $4,6,8,9,10,12,14,15,16,18$ are the required first ten composite numbers.
For finding the first five odd composite numbers , we must understand the concept of composite numbers.
Composite numbers are the numbers which have more than two factors .
And odd composite numbers are the numbers which are composite as well as odd (not divisible by two) .
Therefore, \[9,15,21,25,27\] are the required first five odd composite numbers.
For finding the first five even composite numbers , we must understand the concept of composite numbers.
Composite numbers are the numbers which have more than two factors .
And even composite numbers are the numbers which are composite as well as even (divisible by two) .
Therefore, \[4,6,8,10,12\] are the required first five even composite numbers.

Note: Questions similar in nature as that of above can be approached in a similar manner and we can solve it easily. For solving this type of question, you must understand the concept of prime numbers, composite numbers , odd numbers and even numbers .