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  1. The total number of prime factors of the products (8)20, (15)24, (7)15 is ?
    1. 59
    2. 98
    3. 123
    4. 138
Correct Option: C

Since 2, 3, 5, 17 are prime numbers and
The given expression = (23)20 x (3 x 5)24 x (17)15
= 260 x 324 x 524 x 1715

So the total number of prime factors in the given expression is (60 + 24 + 24 + 15 ) = 123.



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