Question 64

The HCF of 156, 312 and 195 is :

Solution

factor of 156, 312 and 195 are,

156=$$2\times\ 2\times\ 3\times\ 13$$

312=$$2\times\ 2\times2\times\ \ 3\times\ 13$$

195=$$\ \ 3\times5\times\ \ 13$$

comman factors are $$\ \ 3\times\ \ 13$$=39,

Hence option 'A' is correct.

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