Is 276 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 276 is composite or not first we have to find its factors.
Contents
Factors of 276:
- If we have taken numbers from 1, 2, 3…for checking factors of 276, we found that 276 has factors 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138 and 276. Hence, we must say that 276 is a composite number.
- Thus, 276 is the composite umber.
- If we multiply 276 by 1, 2, 3 then we get the multiples of 276 which are 276, 552, and so on
About the number 276:
- 276 has more than two factors which are 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138 and 276 and hence it is the composite number.
- 276 is the even composite number and it is not the perfect square also.
- If we divide 276 by 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138 and 276 then we get remainder as zero. Hence, 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138 and 276 are the factors of 276.
Note:
- 276 is not the perfect square.
- Factors of 276: 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138 and 276
- Prime factors of 276: 2, 3, 23
Conclusion:
- 276 is the composite number which has factors 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138 and
- And hence, 276 is not the prime number.
Multiple Choice Questions:
1) 276 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 276 are
a) 2
b) 2, 3, 23
c) 2, 4, 134
d) 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138 and 276
Ans: b) 2, 3, 23
3) 276 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