Is 3850 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 3850 is composite or not first we have to find its factors.
Contents
Factors of 3850:
- If we have taken numbers from 1, 2, 3…for checking factors of 3850, we found that 3850 has factors 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850. Hence, we must say that 3850 is a composite number.
- Thus, 3850 is the composite number.
- If we multiply 3850 by 1, 2, 3 then we get the multiples of 3850 which are 3850, 7700 and so on.
About the number 3850:
- 3850 has more than two factors which are 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850 and hence it is the composite number.
- 3850 is the even composite number and it is not the perfect square also.
- If we divide 3850 by, 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850 then we get remainder as zero. Hence, 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850 are the factors of 3850.
Note:
- 3850 is not the perfect square.
- Factors of 3850: 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850
- Prime factors of 3850: 2, 5, 7, 11
Conclusion:
- 3850 is the composite number which has factors, 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850
- And hence, 3850 is not the prime number.
Multiple Choice Questions:
1) 3850 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 3850 are
a) 3850
b) 2, 5, 7, 11
c) 10, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850
d) 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850
Ans: c) 10, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850
3) 3850 is composite number because
a) It has factors 1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925 and 3850
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b