64
There cannot be any. If the number has 21 and 351 as factors then it already has 16 factors.
A prime number is a whole number with exactly two factors: 1 and itself.
A prime number has exactly two factors: 1 and itself.
the proper factors are the factors of a number not including the number itself, or 1.
a prime number
prime number
No, a prime number has exactly two factors: 1 and itself.
No, a prime number has exactly two factors: 1 and itself.
A prime number
prime.
Any prime number has exactly two factors, 1 and the number itself.