Is 4215 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 4215 is composite or not first we have to find its factors.
Contents
Factors of 4215:
- If we have taken numbers from 1, 2, 3…for checking factors of 4215, we found that 4215 has factors 1, 3, 5, 15, 281, 843, 1405 and 4215. Hence, we must say that 4215 is a composite number.
- Thus, 4215 is the composite number.
- If we multiply 4215 by 1, 2, 3 then we get the multiples of 4215 which are 4215, 8430 and so on.
4215 is a Composite number or Prime number
About the number 4215:
- 4215 has more than two factors which are 1, 3, 5, 15, 281, 843, 1405 and 4215 and hence it is the composite number.
- 4215 is the odd composite number and it is not the perfect square also.
- If we divide 4215 by 1, 3, 5, 15, 281, 843, 1405 and 4215 then we get remainder as zero. Hence 1, 3, 5, 15, 281, 843, 1405 and 4215 are the factors of 4215
Note:
- 4215 is not the perfect square.
- Factors of 4215:1, 3, 5, 15, 281, 843, 1405 and 4215
- Prime factors of 4215: 3, 5, 281
Conclusion:
- 4215 is the composite number which has factors 1, 3, 5, 15, 281, 843, 1405 and 4215.
- And hence, 4215 is not the prime number.
Multiple Choice Questions:
1) 4215 is a
a) odd number
b) Prime number
c) even number
d) Both a and c
Ans: a) odd number
2) The non-prime factors of a composite number 4215 are
a) 1
b) 3, 5, 281
c) 1, 3, 5, 15, 281, 843, 1405 and 4215
d) 1, 15, 843, 1405 and 4215
Ans: d) 1, 15, 843, 1405 and 4215
3) 4215 is the odd composite number because
a) It has factors 1, 3, 5, 15, 281, 843, 1405 and 4215
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
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