Question

Hcf of 105/-168
please explain too

Answer 1

Step-by-step explanation:

105 is divisible by 3

= 35

35 is divisible by 5

= 7

7 is divisible by 7

= 1

so the numbers which are required to divide 105 are

= 3,5 and 7

now solve for -168

the no -168 has negative sign so we will divide with the numbers only having negative sign. as -2,-3,-4,-5 etc

168 is divisible by -2

= 84

84 is again divisible by -2

= 42

again we will divide with -2 only

=21

now we will use the no -3

= 7

now -7

= 1

so the numbers which are required to divide -168 are

=-2,-2,-2,-3,-7

Now we will find HCF

105=3,5, 7

-168= -2,-2,-2,-3,-7

the numbers 3 and 7 are common in both

so, we will multiply 3 by 7

Answer:21

so the hcf of 105 and -168 is 21

for -168 is= -21

Hope you understand

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