Math, asked by ps1306955, 10 months ago

all the multiples of 3 except 3 all the multiples of 5 except 5 and all the multiples of 7 except 7 are even prime numbers are composite number ​

Answers

Answered by amitnrw
2

Given : multiples of 3 except 3 all the multiples of 5 except 5 and all the multiples of 7 except 7

To Find :   All the numbers are :

Even

Prime

Composite

Solution:

3 , 5 & 7 are prime numbers

Multiples of prime numbers except number itself are non-prime (composite number ).

multiples of 3  except 3  

6 , 9  , 12 , 15 , ........

none is prime ,  

9 , 15 ...are not even

all are  Composite number

multiples of 5 except 5  

10 , 15  , 20 , 25  ........

none is prime ,  

15 , 25 ...are not even

all are  Composite number

multiples of 7 except 7  

14 , 21  , 28 , 35  ........

none is prime ,  

21 , 35 ...are not even

all are  Composite number

Hence all are composite number.

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