Is 290 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 290 is composite or not first we have to find its factors.
Contents
Factors of 290:
- If we have taken numbers from 1, 2, 3…for checking factors of 290, we found that 290 has factors 1, 2, 5, 10, 29, 58, 145 and 290. Hence, we must say that 290 is a composite number.
- Thus, 290 is the composite umber.
- If we multiply 290 by 1, 2, 3 then we get the multiples of 290 which are 290, 580, and so on
About the number 290:
- 290 has more than two factors which are 1, 2, 5, 10, 29, 58, 145 and 290 and hence it is the composite number.
- 290 is the even composite number and it is not the perfect square also.
- If we divide 290 by 1, 2, 5, 10, 29, 58, 145 and 290 then we get remainder as zero. Hence, 1, 2, 5, 10, 29, 58, 145 and 290 are the factors of 290.
Note:
- 290 is not the perfect square.
- Factors of 290: 1, 2, 5, 10, 29, 58, 145 and 290
- Prime factors of 290: 2, 5, 29
Conclusion:
- 290 is the composite number which has factors 1, 2, 5, 10, 29, 58, 145 and
- And hence, 290 is not the prime number.
Multiple Choice Questions:
1) 290 is a
a) Prime number
b) Odd number
c) Composite number
d) Both b and c
Ans: c) composite number
2) The non-prime factors of a composite number 290 are
a) 2
b) 2, 5, 29
c) 1, 10, 58, 145, 290
d) 1, 2, 5, 10, 29, 58, 145 and 290
Ans: c) 1, 10, 58, 145, 290
3) 290 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