$\"\"$

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$\"\"$ means 4 is a factor of 6 times.

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The base is 4.

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The exponent is 6.

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$\"\"$ $\"\"$

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ ) \ \

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$\"\"$

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The value of the expression is $\"\"$ .