Question

1. The one and only even prime number is
a) 2
b) 4
c) 10
d) 12
2. An example for composite number is
b) 47 c) 25 d) 13
a) 5​

Answer 1

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1] 2 is the prime number from given options

2] 25 is the composite number from given options

Answer 2

Answer:

1. The one and only even prime number is:-

a) 2

2. An example for a composite number is:-

c) 25

DEFINITION:

Prime numbers:- Such numbers which have only two factors, which are one and the number itself are called prime numbers. For ex- 2, 3, 13, 19 etc.

Composite numbers:- The numbers which have more than two factors are known as composite numbers. For ex- 4, 20, 25, 9 etc.

UNIQUE NUMBER:

One (1) is known as the unique number because it is neither a prime number nor a composite number. This is so because it has only one factor, i.e. 1. So, it cannot be classified into prime or composite numbers.

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