Is 841 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 841 is composite or not first we have to find its factors.
Contents
Factors of 841:
- If we have taken numbers from 1, 2, 3…for checking factors of 841, we found that 841 has factors 1, 29 and 841. Hence, we must say that 841 is a composite number.
- Thus, 841 is the composite number.
- If we multiply 841 by 1, 2, 3 then we get the multiples of 841 which are 841, 1682 and so on.
841 is a Composite number or Prime number
About the number 841:
- 841 has more than two factors which are 1, 29 and 841 and hence it is the composite number.
- 841 is the odd composite number and it is the perfect square also.
- If we divide 841 by 1, 29 and 841 then we get remainder as zero. Hence, 1, 29 and 841 are the factors of 841
Note:
- 841 is the perfect square.
- Factors of 841: 1, 29 and 841
- Prime factors of 841: 29
Conclusion:
- 841 is the composite number which has factors 1, 29 and 841.
- And hence, 841 is not the prime number.
Multiple Choice Questions:
1) 841 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 841 are
a) 1
b) 29
c) 1 and 841
d) 1, 29 and 841
Ans: b) 29
3) 841 is the odd composite number because
a) It has factors 1, 29 and 841
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c