Is 1939 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 1939 is composite or not first we have to find its factors.
Contents
Factors of 1939:
- If we have taken numbers from 1, 2, 3…for checking factors of 1939, we found that 1939 has factors 1, 7, 277 and 1939. Hence, we must say that 1939 is a composite number.
- Thus, 1939 is the composite number.
- If we multiply 1939 by 1, 2, 3 then we get the multiples of 1939 which are 1939, 3878 and so on.
1939 is a Composite number or Prime number
About the number 1939:
- 1939 has more than two factors which are 1, 7, 277 and 1939 and hence it is the composite number.
- 1939 is the odd composite number and it is not the perfect square also.
- If we divide 1939 by 1, 7, 277 and 1939 then we get remainder as zero. Hence, 1, 7, 277 and 1939 are the factors of 1939
Note:
- 1939 is not the perfect square.
- Factors of 1939: 1, 7, 277 and 1939
- Prime factors of 1939: 7, 277
Conclusion:
- 1939 is the composite number which has factors 1, 7, 277 and 1939.
- And hence, 1939 is not the prime number.
Multiple Choice Questions:
1) 1939 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1939 are
a) 1
b) 7, 277
c) 1 and 1939
d) 1, 7, 277 and 1939
Ans: b) 1 and 1939
3) 1939 is the odd composite number because
a) It has factors 1, 7, 277 and 1939
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all