61 is the Prime number because 61 is only divisble by itself and one. 49 is divisible by 7, itself and 1.
61 is a prime number. 49 is not a prime number as it is divisible by 7. 51 is not a prime number as it is divisible by 3.
The only number which is not a prime number in that list is 49 - it is equal to seven squared.
Yes61 is a Prime NumberThe number 61 is a prime number as it can only be divided by itself and one
61 is a prime number.
61 is a prime number
Itself and one because 61 is a prime number
Itself and one because 61 is a prime number
Itself and one because 61 is a prime number
There are two prime number. They are 61, & 67.
61 is prime.
61 is a Prime Number.
13 prime 63 composite 61 prime 31 prime Well the question should have been either, Which one of these numbers is not a composite number? Or, Which one of these numbers is not a prime number?