check whether 2156is divisible by 11 and7? verify whether 2156 is divisible by product of 11 and 7
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yes 2156 is divisible by 11 and 7
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Given, a number is 2156
Need to find out the given number is divisible by 11 and 7
Also, need to check number divisible by product of 11 and 7.
⇒For, the number 2156 the difference of the digits of odd places and even places must be divisible by 11 or it must be 0.
⇒ (2 + 5)-(1 + 6) = 7-7 = 0
∴ the number is divisible by 11
⇒ Now, we know (6a + 2b + 3c + d) by divisibility rule
⇒ 6(2) + 2(1) + 3(5) + 6
= 12 + 2 + 15 + 6 = 35
∴ 35 is divisible by 7
Product of 11, 7 = 77 which is divisible by 7
Hence, 2156 is divisible by 11 and 7 and divisible by product of 11 and 7.
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