What are the factors and prime factors of 605?

The factors of 605 are: 1 5 11 55 121 605

The prime factors are: 5 x 11 x 11 The prime factorisation of 605 goes as follows:

605 is not evenly divisible by 2 or by 3.

605 divided by 5 gives 121

121 is not evenly divisible by 5, or by 7.

121 divided by 11 gives 11

11 divided by 11 gives 1.

So, the prime factors of 605 are 5, 11 and 11.