3,9,27,81,243,729
The two successive prime numbers are 2 and 3. 1 is not a prime number because it has only one factor, while prime numbers have two positive integer factors.
3 and 11 are both prime numbers. The only factor they have in common is 1.
3, 9, 27, 81, 243, 729
All of them are prime numbers
Prime squares
Since all numbers have one as a factor, there is no number with three as its only factor.
1597 is already prime and has only one prime factor.
Powers of 3 are the numbers that have 3 as their only prime factor. Here are some examples: 3 = 31 9 = 32 27 = 33 81 = 34 243 = 35
3,9,27,81,243,729
All numbers have factors. Some numbers have some of the same factors as other numbers. These are common factors. If the factor is a prime number, it is a common prime factor. 3 is a prime number. 3 is a factor of 9. 3 is a factor of 12. 3 is a common prime factor of 9 and 12.
3 and 5 are both prime numbers and 1 is their only common factor.
30 has three prime numbers and is a factor of 60.
No, factors must be multiplied. The only prime factor of 32 is 2.
All numbers have factors. Some factors are prime numbers. These are known as prime factors. Some numbers have some of the same prime factors as other numbers. These are known as common prime factors. 3 is a common prime factor of 12 and 15.
3, 9, 27, 81, 243, 729 and so on.
It is 3 that is a common prime factor to both numbers