Question

the largest number that divides 64 & 72 and leave the remainder 12 & 7 respectively

Answer 1

Hey,sup!

As per the question,

64-12=52.
72-7=65.

Factors of 52=2×2×13.
65=5×13.
13 is the hcf of 52 and 65.

So 13 is the largest number that divides 64 & 72 and leave remainder 12 & 7 respectively.

Hope it helps.