The highest common factor of both numbers is 1
1, 2, 42, 86 go into 86.
Each of these numbers goes evenly into 86: 1, 2, 43, 86.
1, 2, 43, 86.
43, 86, 129, 172, 215, 258, 301, 344 +43 . . .
1, 2, 42, 86 go into 86.
add all numbers together then divide from how many numbers there are okay so lets say that you have to find the average for 86 and 58 then all you have to do is 86 + 58 = 144 the you go 144 / by two because there are only two numbers so then its 144 / 2 which equals 72 and there you go by the way / means divide
The only number that can go into both numbers is 5
The HCF of both numbers is 1
The HCF of both numbers is 1
The HCF of both numbers is 1
The HCF of both numbers is 1
The HCF of both numbers is 1