Is 3020 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 3020 is composite or not first we have to find its factors.
Contents
Factors of 3020:
- If we have taken numbers from 1, 2, 3…for checking factors of 3020, we found that 3020 has factors 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020. Hence, we must say that 3020 is a composite number.
- Thus, 3020 is the composite number.
- If we multiply 3020 by 1, 2, 3 then we get the multiples of 3020 which are 3020, 6040 and so on.
About the number 3020:
- 3020 has more than two factors which are 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020 and hence it is the composite number.
- 3020 is the even composite number and it is not the perfect square also.
- If we divide 3020 by, 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020 then we get remainder as zero. Hence, 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020 are the factors of 3020.
Note:
- 3020 is not the perfect square.
- Factors of 3020: 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020
- Prime factors of 3020: 2, 5, 151
Conclusion:
- 3020 is the composite number which has factors, 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020
- And hence, 3020 is not the prime number.
Multiple Choice Questions:
1) 3020 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 3020 are
a) 3020
b) 2, 5, 151
c) 4, 10, 20, 302, 604, 755, 1510 and 3020
d) 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020
Ans: c) 4, 10, 20, 302, 604, 755, 1510 and 3020
3) 3020 is even composite number because
a) It has factors 1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510 and 3020
b) It has only two factors
c) Divisible by 2
d) Both a and c
Ans: d) both a and c