169
49 has exactly 3 factors (1, 7, and 49) and is greater than 40 and less than 60.
No. They have different number of factors
30
That's a prime number.
169
Prime Number
A prime number !
a prime number
a prime number
Any composite number will do. No primes!
composite number! ;)
49 has exactly 3 factors (1, 7, and 49) and is greater than 40 and less than 60.
No. They have different number of factors
30
510510
That's a prime number.