Is 429 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 429 is composite or not first we have to find its factors.
Contents
Factors of 429:
- If we have taken numbers from 1, 2, 3…for checking factors of 429, we found that 429 has factors 1, 3, 11, 13, 33, 39, 143 and 429. Hence, we must say that 429 is a composite number.
- Thus, 429 is the composite number.
- If we multiply 429 by 1, 2, 3 then we get the multiples of 429 which are 429, 858 and so on.
429 is a Composite number or Prime number
About the number 429:
- 429 has more than two factors which are 1, 3, 11, 13, 33, 39, 143 and 429 and hence it is the composite number.
- 429 is the odd composite number and it is not the perfect square also.
- If we divide 429 by 1, 3, 11, 13, 33, 39, 143 and 429 then we get remainder as zero. Hence, 1, 3, 11, 13, 33, 39, 143 and 429 are the factors of 429.
Note:
- 429 is not the perfect square.
- Factors of 429: 1, 3, 11, 13, 33, 39, 143 and 429
- Prime factors of 429: 3, 11, 13
Conclusion:
- 429 is the composite number which has factors 1, 3, 11, 13, 33, 39, 143 and 429.
- And hence, 429 is not the prime number.
Multiple Choice Questions:
1) 429 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 429 are
a) 1
b) 3, 11, 13
c) 1, 33, 39, 143 and 429
d) 1, 3, 11, 13, 33, 39, 143 and 429
Ans: b) 3, 11, 13
3) 429 is the odd composite number because
a) It has factors 1, 3, 11, 13, 33, 39, 143 and 429
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c