Is 1505 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 1505 is composite or not first we have to find its factors.
Contents
Factors of 1505:
- If we have taken numbers from 1, 2, 3…for checking factors of 1505, we found that 1505 has factors 1, 5, 7, 35, 43, 215, 301 and 1505. Hence, we must say that 1505 is a composite number.
- Thus, 1505 is the composite number.
- If we multiply 1505 by 1, 2, 3 then we get the multiples of 1505 which are 1505, 3010 and so on.
1505 is a Composite number or Prime number
About the number 1505:
- 1505 has more than two factors which are 1, 5, 7, 35, 43, 215, 301 and 1505 and hence it is the composite number.
- 1505 is the odd composite number and it is not the perfect square also.
- If we divide 1505 by 1, 5, 7, 35, 43, 215, 301 and 1505 then we get remainder as zero. Hence, 1, 5, 7, 35, 43, 215, 301 and 1505 are the factors of 1505
Note:
- 1505 is not the perfect square.
- Factors of 1505: 1, 5, 7, 35, 43, 215, 301 and 1505
- Prime factors of 1505: 5, 7, 43
Conclusion:
- 1505 is the composite number which has factors 1, 5, 7, 35, 43, 215, 301 and 1505.
- And hence, 1505 is not the prime number.
Multiple Choice Questions:
1) 1505 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1505 are
a) 1
b) 5, 7, 43
c) 1, 35, 215, 301 and 1505
d) 1, 5, 7, 35, 43, 215, 301 and 1505
Ans: b) 1, 35, 215, 301 and 1505
3) 1505 is the odd composite number because
a) It has factors 1, 5, 7, 35, 43, 215, 301 and 1505
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all