Is 1419 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 1419 is composite or not first we have to find its factors.
Contents
Factors of 1419:
- If we have taken numbers from 1, 2, 3…for checking factors of 1419, we found that 1419 has factors 1, 3, 11, 33, 43, 129, 473 and 1419. Hence, we must say that 1419 is a composite number.
- Thus, 1419 is the composite number.
- If we multiply 1419 by 1, 2, 3 then we get the multiples of 1419 which are 1419, 2838 and so on.
1419 is a Composite number or Prime number
About the number 1419:
- 1419 has more than two factors which are 1, 3, 11, 33, 43, 129, 473 and 1419 and hence it is the composite number.
- 1419 is the odd composite number and it is not the perfect square also.
- If we divide 1419 by 1, 3, 11, 33, 43, 129, 473 and 1419 then we get remainder as zero. Hence, 1, 3, 11, 33, 43, 129, 473 and 1419 are the factors of 1419
Note:
- 1419 is not the perfect square.
- Factors of 1419: 1, 3, 11, 33, 43, 129, 473 and 1419
- Prime factors of 1419: 3, 11, 43
Conclusion:
- 1419 is the composite number which has factors 1, 3, 11, 33, 43, 129, 473 and 1419.
- And hence, 1419 is not the prime number.
Multiple Choice Questions:
1) 1419 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 1419 are
a) 1
b) 3, 11, 43
c) 1, 33, 129, 473 and 1419
d) 1, 3, 11, 33, 43, 129, 473 and 1419
Ans: b) 1, 33, 129, 473 and 1419
3) 1419 is the odd composite number because
a) It has factors 1, 3, 11, 33, 43, 129, 473 and 1419
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all