It is 1 which is the HCF of both numbers
245x5= 1225
35*35 = 1225
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.
1225 = 52*72
The numbers that go into 30 are1, 2, 3, 5, 30, 15, 10, 6
They can be: 1*25*49 = 1225
60.5
1,2,3,6,7
11,6,1,2,33
n
2,4,7