If a = 3 ^(129) xx 5 ^(128) xx 7 ^(22) ...

If `a = 3 ^(129) xx 5 ^(128) xx 7 ^(22)`
`b = 3 ^(128) xx 5 ^(129) xx 7 ^(21)`
`c = 3 ^(127)xx 5 ^(128) xx 7 ^(23)`
`d = 3 ^(127) xx 5 ^(128) xx 7 ^(24) ,` then HCF of a,b,c and d is

A

`3^(128)xx5^(128)xx7^(21)`

B

`3^(128)xx5^(129)xx7^(21)`

C

`3^(127)xx5^(128)xx7^(21)`

D

`3^(127)xx5^(128)xx7^(22)`

Verified by Experts

The correct Answer is:

C

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