Is 49 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 49 is composite or not first we have to find its factors.
Contents
Factors of 49:
- If we have taken numbers from 1, 2, 3…for checking factors of 49, we found that 49 has factors 1, 7 and 49. Hence, we must say that 49 is a composite number.
- Thus, 49 is the composite number.
- If we multiply 49 by 1, 2, 3 then we get the multiples of 49 which are 49, 98, and so on.
About the number 49:
- 49 has more than two factors which are 1,7and 49 and hence it is the composite number.
- 49 is the odd composite number and it is the perfect square also.
- If we divide 49 by 1, 7 and 49 then we get remainder as zero. Hence, 1, 7 and 49 are the factors of 49.
Note:
- 49 is the perfect square.
- Factors of 49: 1, 7 and 49
- Prime factors of 49: 7
Conclusion:
- 49 is the composite number which has factors 1, 7and 49.
- And hence, 49 is not the prime number.
Multiple Choice Questions:
1) 49 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 49 are
a) 1
b) 7
c) Both a and b
d) 491
Ans: b) 7
3) 1 is the not prime factor of 49 because
a) It is the prime number
b) 1 is neither prime nor composite number
c) Both a and b
d) Given statement is false
Ans: b) 1 is neither prime nor composite number