Not sure about a "problom" but the number is a "prime".
A prime number is a whole number with exactly two factors: 1 and itself.
A prime number has exactly two factors: 1 and itself.
prime number
a prime number
A prime number
A prime number
A prime number has exactly two factors: 1 and the number itself.
A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.
A positive integer with only two factors: one and the number itself.
No, a prime number has exactly two factors: 1 and itself.
No, a prime number has exactly two factors: 1 and itself.