Is 637 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 637 is composite or not first we have to find its factors.
Contents
Factors of 637:
- If we have taken numbers from 1, 2, 3…for checking factors of 637, we found that 637 has factors 1, 7, 13, 49, 91 and 637. Hence, we must say that 637 is a composite number.
- Thus, 637 is the composite number.
- If we multiply 637 by 1, 2, 3 then we get the multiples of 637 which are 637, 1274 and so on.
637 is a Composite number or Prime number
About the number 637:
- 637 has more than two factors which are 1, 7, 13, 49, 91 and 637 and hence it is the composite number.
- 637 is the odd composite number and it is not the perfect square also.
- If we divide 637 by 1, 7, 13, 49, 91 and 637 then we get remainder as zero. Hence, 1, 7, 13, 49, 91 and 637 are the factors of 637.
Note:
- 637 is not the perfect square.
- Factors of 637: 1, 7, 13, 49, 91 and 637
- Prime factors of 637: 7, 13
Conclusion:
- 637 is the composite number which has factors 1, 7, 13, 49, 91 and 637.
- And hence, 637 is not the prime number.
Multiple Choice Questions:
1) 637 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 637 are
a) 1
b) 7, 13
c) 1, 49, 91 and 637
d) 1, 7, 13, 49, 91 and 637
Ans: b) 7, 13
3) 637 is the odd composite number because
a) It has factors 1, 7, 13, 49, 91 and 637
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a an c