Is 1969 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 1969 is composite or not first we have to find its factors.
Contents
Factors of 1969:
- If we have taken numbers from 1, 2, 3…for checking factors of 1969, we found that 1969 has factors 1, 11, 179 and 1969. Hence, we must say that 1969 is a composite number.
- Thus, 1969 is the composite number.
- If we multiply 1969 by 1, 2, 3 then we get the multiples of 1969 which are 1969, 3938 and so on.
1969 is a Composite number or Prime number
About the number 1969:
- 1969 has more than two factors which are 1, 11, 179 and 1969 and hence it is the composite number.
- 1969 is the odd composite number and it is not the perfect square also.
- If we divide 1969 by 1, 11, 179 and 1969 then we get remainder as zero. Hence, 1, 11, 179 and 1969 are the factors of 1969
Note:
- 1969 is not the perfect square.
- Factors of 1969: 1, 11, 179 and 1969
- Prime factors of 1969: 11, 179
Conclusion:
- 1969 is the composite number which has factors 1, 11, 179 and 1969.
- And hence, 1969 is not the prime number.
Multiple Choice Questions:
1) 1969 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 1969 are
a) 1
b) 11, 179
c) 1 and 1969
d) 1, 11, 179 and 1969
Ans: c) 1 and 1969
3) 1969 is the odd composite number because
a) It has factors 1, 11, 179 and 1969
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all