1 and 41.
The factors of 41 are 1 and 41. It is therefore, a Prime number.
2 and 41
1, 5, 41, 205.
Four: 1 5 41 205.
The only common factor is one.
Each of these numbers goes evenly into 82: 1, 2, 41, 82.
41, 43, 47
They are its factors which are: 1, 2, 41 and 82
41 is a prime number. It has no composite numbers as factors.
More than two numbers go into 1640 - excluding 1 and 1640, 2, 5 and 41: 2 x 2 x 2 x 2 x 5 x 41 = 1640.
5 and 41 are prime numbers but 18 is a composite number