1, 3, 17, 51.
17 and 3 can evenly go into 51.
1 and 3
3 and 1 will go into both number evenly leaving no remainders.
1, 3, 17, 51.
No. 51 is not evenly divisible by 12.
1, 3, 17, 51.
These will: 1, 3, 5, 15, 17, 51, 85, 255.
No. 51 is not evenly divisible by four.
3 and 17.
Only the number one.
The HCF is one
The numbers 1 and 3.