Power Modulo Calculator

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Power modulo

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What is Power Modulo?

Modular exponentiation finds the remainder of a power without needing to display the entire power.

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How to Use This Calculator

  1. Enter or select x (base), y (exponent), n (divisor).
  2. Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
  3. Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used

Result = x^y mod n
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Variables Explained

InputWhat it means
x (base)Use the measured or stated value for this item, with the unit or category shown beside the field.
y (exponent)Use the measured or stated value for this item, with the unit or category shown beside the field.
n (divisor)The quantity being divided by. A zero divisor is undefined.
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Worked Example

3^4 = 81, and 81 mod 5 = 1.

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Why Use This Calculator?

Check an integer-power remainder while avoiding an unwieldy written power.

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Common Mistakes

    • The modulus must be positive and the exponent must fit the calculator’s supported integer domain.
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Frequently Asked Questions

Should I round numbers before calculating?

Keep the original input precision through the calculation and round the final answer to the precision you need. Rounding an intermediate result can change later steps.

Why can a manual calculation differ slightly?

Check the operation, units, signs and rounding first. Equivalent fractions or expressions can look different while representing the same value.

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Sources & References