The positive integer with only one factor is 1.
A prime number has two positive integer factors, itself and 1. The number 0 has no positive integer factors, and is therefore not prime. The number 1 has just a single positive integer factor, and once again, is not prime.
No, 5 is.
5 is a prime factor of both numbers.
A prime number is a number with two positive integer factors, while a composite number has more than two positive integer factors. Since the number 0 has no positive integer factors, and the number 1 has just one positive integer factor (itself), neither of these are prime.
The positive integer with only one factor is 1.
A factor of a integer is an integer that divides the second integer into a third integer exactly; i.e. A is a factor of B if B/A is exactly C, where all of A, B and C are integers. A prime factor is a factor as above, but is also a prime number. This means that the only factors of that factor are one and the number itself; i.e. A is a prime factor of B if B/A is exactly C andthe only factors of A are 1 and A.
No. Most integers aren't prime.
2, 3 and 5
No, 20 isn't prime.
what number is not a prime factor
4 is a prime factor of 20 whereas it isn't a factor of 50.
Since 13 is a prime number, its only positive integer factors are itself and 1. Since the number 20 shares the common factor 1, the only common factor of the numbers is 1.
1 and 41 because it's a prime number
A prime number has two positive integer factors, itself and 1. The number 0 has no positive integer factors, and is therefore not prime. The number 1 has just a single positive integer factor, and once again, is not prime.
The number 32 has only one prime factor: 2The true prime factor for any number is 1.
5 is the greatest prime factor of 20.