Is 310 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 310 is composite or not first we have to find its factors.
Contents
Factors of 310:
- If we have taken numbers from 1, 2, 3…for checking factors of 310, we found that 310 has factors 1, 2, 5, 10, 31, 62, 155 and 310. Hence, we must say that 310 is a composite number.
- Thus, 310 is the composite umber.
- If we multiply 310 by 1, 2, 3 then we get the multiples of 310 which are 310, 620 and so on.
About the number 310:
- 310 has more than two factors which are 1, 2, 5, 10, 31, 62, 155 and 310 and hence it is the composite number.
- 310 is the even composite number and it is not the perfect square also.
- If we divide 310 by 1, 2, 5, 10, 31, 62, 155 and 310 then we get remainder as zero. Hence, 1, 2, 5, 10, 31, 62, 155 and 310 are the factors of 310.
Note:
- 310 is not the perfect square.
- Factors of 310: 1, 2, 5, 10, 31, 62, 155 and 310
- Prime factors of 310: 2, 5, 31
Conclusion:
- 310 is the composite number which has factors 1, 2, 5, 10, 31, 62, 155 and 310
- And hence, 310 is not the prime number.
Multiple Choice Questions:
1) 310 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 310 are
a) 2
b) 2, 5, 31
c) 152
d) 1, 2, 5, 10, 31, 62, 155 and 310
Ans: b) 2, 5, 31
3) 310 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