Is 2890 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 2890 is composite or not first we have to find its factors.
Contents
Factors of 2890:
- If we have taken numbers from 1, 2, 3…for checking factors of 2890, we found that 2890 has factors 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890. Hence, we must say that 2890 is a composite number.
- Thus, 2890 is the composite number.
- If we multiply 2890 by 1, 2, 3 then we get the multiples of 2890 which are 2890, 5780 and so on.
About the number 2890:
- 2890 has more than two factors which are 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890 and hence it is the composite number.
- 2890 is the even composite number and it is not the perfect square also.
- If we divide 2890 by, 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890 then we get remainder as zero. Hence, 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890 are the factors of 2890.
Note:
- 2890 is not the perfect square.
- Factors of 2890: 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890
- Prime factors of 2890: 2, 5, 17
Conclusion:
- 2890 is the composite number which has factors, 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890
- And hence, 2890 is not the prime number.
Multiple Choice Questions:
1) 2890 is a
a) Prime number
b) Odd number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The composite factors of a composite number 2890 are
a) 2890
b) 2, 5, 17
c) 10, 34, 85, 170, 289, 578, 1445 and 2890
d) 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890
Ans: c) 10, 34, 85, 170, 289, 578, 1445 and 2890
3) 2890 is even composite number because
a) It has factors 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445 and 2890
b) It has only two factors
c) Divisible by 2
d) Both a and c
Ans: d) both a and c