1.

Check whether 939715 is divisible by 7.

Answer»

Solution :Step 1:`939715 RARR 93971 - 5 xx 2 = 93961`
Step 2:`93961 rArr 9396 - 1 xx 2 = 9394`
Step 3: `9394 rArr 939 - 4 xx 2 = 931`
Step 4: `931 rArr 93 - 1 xx 2 = 91`
Step 5: `91 rArr 9 - 1 xx 2 = 7`
HENCE it is divisible by 7.


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