Find the greatest no. Which divides 875 and 720 .It divide their sum+1 and subtract-1 also
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HCF for 875 and 720
875 = 5*5*5*7
720 = 2*2*2*2*3*3*5
so HCF for 875 and 720 is 5
sum of 875 and 720 +1 = 875+720+1 = 1596 which cannot be divisible by 5
subtract 875 and 720 - 1 = 875 - 720 - 1 = 154 which cannot be divisible by 5
so the greatest no is 1
875 = 5*5*5*7
720 = 2*2*2*2*3*3*5
so HCF for 875 and 720 is 5
sum of 875 and 720 +1 = 875+720+1 = 1596 which cannot be divisible by 5
subtract 875 and 720 - 1 = 875 - 720 - 1 = 154 which cannot be divisible by 5
so the greatest no is 1
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