Is 622 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 622 is composite or not first we have to find its factors.
Contents
Factors of 622:
- If we have taken numbers from 1, 2, 3…for checking factors of 622, we found that 622 has factors 1, 2, 311 and 622. Hence, we must say that 622 is a composite number.
- Thus, 622 is the composite umber.
- If we multiply 622 by 1, 2, 3 then we get the multiples of 622 which are 622, 1244 and so on.
About the number 622:
- 622 has more than two factors which are 1, 2, 311 and 622 and hence it is the composite number.
- 622 is the even composite number and it is not the perfect square also.
- If we divide 622 by 1, 2, 311 and 622 then we get remainder as zero. Hence, 1, 2, 311 and 622 are the factors of 622.
Note:
- 622 is not the perfect square.
- Factors of 622: 1, 2, 311 and 622
- Prime factors of 622: 2, 311
Conclusion:
- 622 is the composite number which has factors 1, 2, 311 and 622
- And hence, 622 is not the prime number.
Multiple Choice Questions:
1) 622 is a
a) Prime number
b) odd number
c) Composite number
d) Both b and c
Ans: c) composite number
2) The non-prime factors of a composite number 622 are
a) 1
b) 2, 311
c) 1 and 622
d) 1, 2, 311 and 622
Ans: c) 1 and 622
3) 622 is the composite number because
a) It has two factors
b) More than two factors
c) Divisible by 2
d) Both b and c
Ans: b) more than two factors