Is 755 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 755 is composite or not first we have to find its factors.
Contents
Factors of 755:
- If we have taken numbers from 1, 2, 3…for checking factors of 755, we found that 755 has factors 1, 5, 151 and 755. Hence, we must say that 755 is a composite number.
- Thus, 755 is the composite number.
- If we multiply 755 by 1, 2, 3 then we get the multiples of 755 which are 755, 1510 and so on.
755 is a Composite number or Prime number
About the number 755:
- 755 has more than two factors which are 1, 5, 151 and 755 and hence it is the composite number.
- 755 is the odd composite number and it is not the perfect square also.
- If we divide 755 by 1, 5, 151 and 755 then we get remainder as zero. Hence, 1, 5, 151 and 755 are the factors of 755
Note:
- 755 is not the perfect square.
- Factors of 755: 1, 5, 151 and 755
- Prime factors of 755: 5, 151
Conclusion:
- 755 is the composite number which has factors 1, 5, 151 and 755.
- And hence, 755 is not the prime number.
Multiple Choice Questions:
1) 755 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 755 are
a) 1
b) 5, 151
c) 1 and 755
d) 1, 5, 151 and 755
Ans: b) 5, 151
3) 755 is the odd composite number because
a) It has factors 1, 5, 151 and 755
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c