Find the largest number that will divide398,436&542leaving remaindear7,11,15
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Step-by-step explanation:
to find the largest number(hcf),
let us minus 398 with 7=(398-7)=391
let us minus 436 with 11=(436-11)=425
again let us minus 542 with 15=(542-15)=527
now,let us take out the LCm of 391,425and527
we get, 391=17 and 23
425=5,5 and 17
527=17 and 31
since the number 17 is repeating in all the LCm numbers,therefore 17 is the largest number that will divide 398,436 and 542 leaving remainder 7,11 and 15.
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