Is 1929 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 1929 is composite or not first we have to find its factors.
Contents
Factors of 1929:
- If we have taken numbers from 1, 2, 3…for checking factors of 1929, we found that 1929 has factors 1, 3, 643 and 1929. Hence, we must say that 1929 is a composite number.
- Thus, 1929 is the composite number.
- If we multiply 1929 by 1, 2, 3 then we get the multiples of 1929 which are 1929, 3858 and so on.
1929 is a Composite number or Prime number
About the number 1929:
- 1929 has more than two factors which are 1, 3, 643 and 1929 and hence it is the composite number.
- 1929 is the odd composite number and it is not the perfect square also.
- If we divide 1929 by 1, 3, 643 and 1929 then we get remainder as zero. Hence, 1, 3, 643 and 1929 are the factors of 1929
Note:
- 1929 is not the perfect square.
- Factors of 1929: 1, 3, 643 and 1929
- Prime factors of 1929: 3, 643
Conclusion:
- 1929 is the composite number which has factors 1, 3, 643 and 1929.
- And hence, 1929 is not the prime number.
Multiple Choice Questions:
1) 1929 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 1929 are
a) 1
b) 3, 643
c) 1 and 1929
d) 1, 3, 643 and 1929
Ans: b) 1 and 1929
3) 1929 is the odd composite number because
a) It has factors 1, 3, 643 and 1929
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all