Question

find the largest number which divides 398,436 nd 542 leavin remainder 7,11 nd 15 respectivly

Answer 1

@apoorvk

Answer 2

Let that no. be 'x'.
Now if 298 would have been 7 less, i.e. 391, then it would have been perfectly divisible by 'x'.

Agree?

Answer 3

ya

Answer 4

its 398 nt 298

Answer 5

similarly, for 436 and 542, if they had been 11 and 15 less respectively, that is 425 and 527, then 'x' would have divided them exactly.

lol yes *398.

Answer 6

lol!!!
ur a genius....nw i jst hav 2 tak de hcf ryt??

Answer 7

so, that means, 391, 425 and 527 are completely divisible by 'x'.

Now, what is the greatest no. that divides all 3 of them? Remember HCF?

Answer 8

Yes, right, the HCF! great work!

No, not me, you are the genius! :)

Answer 9

:D