Is 4642 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 4642 is composite or not first we have to find its factors.
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Factors of 4642:
- If we have taken numbers from 1, 2, 3…for checking factors of 4642 we found that 4642 has factors 1, 2, 11, 22, 211, 422, 2321 and 4642. Hence, we must say that 4642 is a composite number.
- Thus, 4642 is the composite number.
- If we multiply 4642 by 1, 2, 3 then we get the multiples of 4642 which are 4642, 9284 and so on.
About the number 4642:
- 4642 has more than two factors which are 1, 2, 11, 22, 211, 422, 2321 and 4642 and hence it is the composite number.
- 4642 is the even composite number and it is not the perfect square also.
- If we divide 4642 by, 1, 2, 11, 22, 211, 422, 2321 and 4642 then we get remainder as zero. Hence, 1, 2, 11, 22, 211, 422, 2321 and 4642 are the factors of 4642.
Note:
- 4642 is not the perfect square.
- Factors of 4642: 1, 2, 11, 22, 211, 422, 2321 and 4642
- Prime factors of 4642: 2, 11, 211
Conclusion:
- 4642 is the composite number which has factors, 1, 2, 11, 22, 211, 422, 2321 and 4642
- And hence, 4642 is not the prime number.
Multiple Choice Questions:
1) 4642 is a
a) Prime number
b) even number
c) even Composite number
d) Both a and c
Ans: c) even composite number
2) The prime factors of a composite number 4642 are
a) 4642
b) 2, 11, 211
c) 22, 422, 2321 and 4642
d) 1, 2, 11, 22, 211, 422, 2321 and 4642
Ans: b) 2, 11, 211
3) 4642 is even composite number because
a) It has factors 1, 2, 11, 22, 211, 422, 2321 and 4642
b) It has more than two factors
c) Divisible by 2
d) all
Ans: d) all