Is 3910 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 3910 is composite or not first we have to find its factors.
Contents
Factors of 3910:
- If we have taken numbers from 1, 2, 3…for checking factors of 3910, we found that 3910 has factors 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910. Hence, we must say that 3910 is a composite number.
- Thus, 3910 is the composite number.
- If we multiply 3910 by 1, 2, 3 then we get the multiples of 3910 which are 3910, 7820 and so on.
About the number 3910:
- 3910 has more than two factors which are 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910 and hence it is the composite number.
- 3910 is the even composite number and it is not the perfect square also.
- If we divide 3910 by, 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910 then we get remainder as zero. Hence, 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910 are the factors of 3910.
Note:
- 3910 is not the perfect square.
- Factors of 3910: 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910
- Prime factors of 3910: 2, 5, 17, 23
Conclusion:
- 3910 is the composite number which has factors, 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910
- And hence, 3910 is not the prime number.
Multiple Choice Questions:
1) 3910 is a
a) Prime number
b) Even number
c) Composite number
d) Both b and c
Ans: d) both b and c
2) The composite factors of a composite number 3910 are
a) 3910
b) 2, 5, 17, 23
c) 10, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910
d) 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910
Ans: c) 10, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910
3) 3910 is composite number because
a) It has factors 1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955 and 3910
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b