Question

find the largest no. which divides 245 and 1245 leaving remainder 5 in each case.

Answer 1

plz help

Answer 2

working on it :) i just want to make sure i know how to solve it before I give you an answer

Answer 3

i knw ans but dont knw how 2 do it.........will u plz give working
ans is 40

Answer 4

yeah gimme a sec to do the work

Answer 5

oh tell me how 2 do this type of quetions in exam

Answer 6

ok well first of all, you have to leave a remainder of five in each case, so subtract five from each number, getting 240 and 1240. does that make sense?

Answer 7

ok then wat 2 do?

Answer 8

then you want to get the prime factorization of of those two numbers
so for 240:
and for 1240: