2, 5, 10 and 25
proper fraction
1,5,11,55
3
The factors of 53 are: 1, 53
No. Some proper factors are prime.
No, no prime number has proper factors.
1 doesn't have proper factors.
One has no proper factors.
59 is a prime number. Its factors are 1 and 59.
48 has ten factors.
In conversation, yes. In proper writing, no. "One fifty" could also refer to $1.50
The proper factors of 26 are 2 and 13