Is 149 is a prime 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 149 is prime or not first we have to find its factors.
Contents
Factors of 149 :
- If we have taken numbers from 1, 2, 3…for checking factors of 149, we found that 149 has factors 1 and the number 149 itself. Hence, we must say that 149 is a prime number.
- Thus, 149 is the prime number.
- Here, 149 is the odd prime number.
- If we multiply 149 by 1, 2, 3, then we get the multiples of 149 which are 149, 298, 447…and so on.
About the number 149:
- 149 has only two factors which are 1 and the number itself and hence 149 is the prime number.
- 149 is the odd prime number and it is not the perfect square also.
- If we divide 149 by 1 and the number itself then we get remainder as zero. Hence, 1 and 149 are the factors of 149.
Note:
- 149 is not the perfect square.
- Factors of 149: 1 and 149
- Prime factors of 149: 149 (since, 149 is the only one prime number which is the factor of 149.)
Conclusion:
- 149is the prime number which has factors 1 and 149.
- And hence, 149 is the prime number.
Multiple Choice Questions:
1) 149 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and b
Ans: d) both a and b
2) The prime factors of a prime number 149 are
A) 1
b) 149
c) Both a and b
d) 0
Ans: b) 149
3) 1 is the not prime factor of 149 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