Is 3040 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 3040 is composite or not first we have to find its factors.
Contents
Factors of 3040:
- If we have taken numbers from 1, 2, 3…for checking factors of 3040, we found that 3040 has factors 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040. Hence, we must say that 3040 is a composite number.
- Thus, 3040 is the composite number.
- If we multiply 3040 by 1, 2, 3 then we get the multiples of 3040 which are 3040, 6080 and so on.
About the number 3040:
- 3040 has more than two factors which are 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040 and hence it is the composite number.
- 3040 is the even composite number and it is not the perfect square also.
- If we divide 3040 by, 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040 then we get remainder as zero. Hence, 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040 are the factors of 3040.
Note:
- 3040 is not the perfect square.
- Factors of 3040: 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040
- Prime factors of 3040: 2, 5, 19
Conclusion:
- 3040 is the composite number which has factors, 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040
- And hence, 3040 is not the prime number.
Multiple Choice Questions:
1) 3040 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 3040 are
a) 3040
b) 2, 5, 19
c) 4, 8, 10, 16, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040
d) 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040
Ans: c) 4, 8, 10, 16, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040
3) 3040 is even composite number because
a) It has factors 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520 and 3040
b) It has only two factors
c) Divisible by 2
d) Both a and c
Ans: d) both a and c