1 and 5
2.
The number 5 goes into both 65 and 130 (65/5 = 13, 130/5 = 26)
1 and 2.
1, 5, 13, 65.
Any non-zero number will go into 65 and 520 if you allow fractions.
1
13
The number is 1.
The HCF is 5
1 and 13.
It is: 5
34.35 x 65/100 = 2232.75/10000 = 0.223275 (answer)