205 cannot be a prime factor of anything since it is not prime.
The factor tree would be hard to show so here is the prime factorization.41 times 5
The prime factors of 205 are: 5 and 41
The factor pairs of 205 are 1 x 205 and 5 x 41.
The greatest common factor of 205 and 38 is 1.
205 = 5 x 41
41 x 5 = 205
The GCF of 10 and 205 is 5.
41,5
The prime factors are: 5 x 41
It is a Prime number
They are: 5 and 41
The only common factor is: 1