5 is prime, only 1 and 5 so the answer is 1
The number is 1.
5.5
5 will go 3 times into 16 and leave a remainder of 1. This is the same thing as saying 16 divided by 5 is 3 remainder 1, or as a mixed number: 3 1/5
The number is 1.
The number is 1.
The number is 16/5
One.
2 goes into both.
-16
The HCF of 16 and 64 is 16
4
1