No since it is an even number it has 2 as a factor. If the factors are the number itself and 1 it is prime. If there are more factors it is not. 28 has many more factors.
28=22 x7
So 2 and 4 and 7 are all factors as is 14.
Chat with our AI personalities
28 is composite.
There is no prime number equal to 28. I know you must find this disappointing.
28 = 2x2x7
No, because 28 can only be calculated as a product in the following ways: 1 x 28 2 x 14 4 x 7 In the above cases, 28, 14 and 4 are all non-prime numbers, which means that 28 cannot be a product of 2 prime numbers alone.
As a product of its prime factors: 2*23 = 46 As a product of its prime factors: 2*2*7 = 28