Its square root is less than 9, but it is not evenly divisible by any number less than 9, other than 1, so it is a prime number
25 is the number not less than 20, not greater than 40, not divisible by 2 3 or 7, and not a prime number.
25 is divisible by 5 24 is divisible by 2,3,4,6,8,12 So the answer is 23
85
49 is not prime, as it's 7 * 7.
Prime numbers are such number which are only divisible by 1 and by itself only..{1,2,3,5,7,11,13,17}
Because it is divisible by the prime number 2, which is less than 10.
No.
No 75 is not a prime number because it is divisible by numbers other than the number 1 and itself. No 75 is not a prime number because it is divisible by numbers other than the number 1 and itself. No 75 is not a prime number because it is divisible by numbers other than the number 1 and itself. No 75 is not a prime number because it is divisible by numbers other than the number 1 and itself.75 is not a prime number because it has more than two factors and so therefore it is a composite number.
Just 7. Any other number divisible by 7 isn't prime.
If it is divisible by 2, 3, 5 or 7 then it is not prime. Otherwise it is.
16