Is 1261 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 1261 is composite or not first we have to find its factors.
Contents
Factors of 1261:
- If we have taken numbers from 1, 2, 3…for checking factors of 1261, we found that 1261 has factors 1, 13, 97 and 1261. Hence, we must say that 1261 is a composite number.
- Thus, 1261 is the composite number.
- If we multiply 1261 by 1, 2, 3 then we get the multiples of 1261 which are 1261, 2522 and so on.
1261 is a Composite number or Prime number
About the number 1261:
- 1261 has more than two factors which are 1, 13, 97 and 1261 and hence it is the composite number.
- 1261 is the odd composite number and it is not the perfect square also.
- If we divide 1261 by 1, 13, 97 and 1261 then we get remainder as zero. Hence, 1, 13, 97 and 1261 are the factors of 1261
Note:
- 1261 is not the perfect square.
- Factors of 1261: 1, 13, 97 and 1261
- Prime factors of 1261: 13, 97
Conclusion:
- 1261 is the composite number which has factors 1, 13, 97 and 1261.
- And hence, 1261 is not the prime number.
Multiple Choice Questions:
1) 1261 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1261 are
a) 1
b) 13, 97
c) 1 and 1261
d) 1, 13, 97 and 1261
Ans: b) 1 and 1261
3) 1261 is the odd composite number because
a) It has factors 1, 13, 97 and 1261
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all