Is 150 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 150 is composite or not first we have to find its factors.
Contents
Factors of 150:
- If we have taken numbers from 1, 2, 3…for checking factors of 150, we found that 150 has factors 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150. Hence, we must say that 150 is a composite number.
- Thus, 150 is the composite number.
- If we multiply 150 by 1, 2, 3 then we get the multiples of 150 which are 150, 300, and so on.
About the number 150:
- 150 has more than two factors which are 1,2,3, 5, 6, 10, 15, 25, 30, 50, 75 and 150 and hence it is the composite number.
- 150 is the even composite number and it is not the perfect square also.
- If we divide 150 by 1,2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150 then we get remainder as zero. Hence, 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150 are the factors of 150.
Note:
- 150 is not the perfect square.
- Factors of 150: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150
- Prime factors of 150: 2, 3, 5
Conclusion:
- 150 is the composite number which has factors 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75 and 150.
- And hence, 150 is not the prime number.
Multiple Choice Questions:
1) 150 is a
a) even 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 150 are
a) 1
b) 2, 3, 5
c) Both a and b
d) 1501
Ans: b) 2, 3, 5
3) 1 is the not prime factor of 150 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