Is 318 is a Composite number

 Is 318 is a composite number or not ?

  • As we already know that, the number having factors 1 and the number itself is the prime number.
  • And numbers having more than these two factors are the composite numbers.
  • To check whether the number 318 is composite or not first we have to find its factors.

 

Factors of 318:

  • If we have taken numbers from 1, 2, 3…for checking factors of 318, we found that 318 has factors 1, 2, 3, 6, 53, 106, 159 and 318. Hence, we must say that 318 is a composite number.
  • Thus, 318 is the composite umber.
  • If we multiply 318 by 1, 2, 3 then we get the multiples of 318 which are 318, 636 and so on.

 

About the number 318:

  • 318 has more than two factors which are 1, 2, 3, 6, 53, 106, 159 and 318 and hence it is the composite number.
  • 318 is the even composite number and it is not the perfect square also.
  • If we divide 318 by 1, 2, 3, 6, 53, 106, 159 and 318 then we get remainder as zero. Hence, 1, 2, 3, 6, 53, 106, 159 and 318 are the factors of 318.

 

Note:

  • 318 is not the perfect square.
  • Factors of 318:1, 2, 3, 6, 53, 106, 159 and 318
  • Prime factors of 318: 2, 3, 53

 

Conclusion:

  • 318 is the composite number which has factors 1, 2, 3, 6, 53, 106, 159 and 318
  • And hence, 318 is not the prime number.

 

Multiple Choice Questions:

 

1) 318 is a

a) Prime number

b) Even number

c) Composite number

d) Both b and c

Ans: d) both b and c

 

2) The prime factors of a composite number 318 are

a) 2

b) 2, 3, 53

c) 106, 159

d) 1, 2, 3, 6, 53, 106, 159 and 318

Ans: b) 2, 3, 53

 

3) 318 is the even composite number as it has

a) Only two factors

b) It is divisible by 2

c) More than 2 factors

d) Both b and c

Ans: d) both b and c

Updated: December 3, 2021 — 4:35 pm

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