Modular Inverse of q by q [on hold]

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Say I have to find p/q mod q .
So my first intuition was using modular Inverse of q mod q but then it doesn't exist so now what should I do ?



Note : I don't want to first divide and then find the mod .




modular-arithmetic




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put on hold as unclear what you're asking by Apoorv Jain, Jyrki Lahtonen, Mohammad Riazi-Kermani, hardmath, John Ma 2 days ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.










  • 1




    Is $p$ a multiple of $q$ (e.g. $p=12, ;q=3, ;p/q = 4, ;p/q mod q = 1)?$ If not how do you define $p/q mod q ?$ Give an example.
    – gammatester
    2 days ago










  • Yes p is a multiple of q .
    – Apoorv Jain
    2 days ago










  • While you may not want "to first divide and then find the mod", that is probably what the expression means. Please add parentheses to make the expression unambiguous, and consider learning MathJax and $LaTeX$ since you've been around awhile.
    – hardmath
    2 days ago














up vote
0
down vote

favorite












Say I have to find p/q mod q .
So my first intuition was using modular Inverse of q mod q but then it doesn't exist so now what should I do ?



Note : I don't want to first divide and then find the mod .




modular-arithmetic




share|cite|improve this question











put on hold as unclear what you're asking by Apoorv Jain, Jyrki Lahtonen, Mohammad Riazi-Kermani, hardmath, John Ma 2 days ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.










  • 1




    Is $p$ a multiple of $q$ (e.g. $p=12, ;q=3, ;p/q = 4, ;p/q mod q = 1)?$ If not how do you define $p/q mod q ?$ Give an example.
    – gammatester
    2 days ago










  • Yes p is a multiple of q .
    – Apoorv Jain
    2 days ago










  • While you may not want "to first divide and then find the mod", that is probably what the expression means. Please add parentheses to make the expression unambiguous, and consider learning MathJax and $LaTeX$ since you've been around awhile.
    – hardmath
    2 days ago












up vote
0
down vote

favorite









up vote
0
down vote

favorite











Say I have to find p/q mod q .
So my first intuition was using modular Inverse of q mod q but then it doesn't exist so now what should I do ?



Note : I don't want to first divide and then find the mod .




modular-arithmetic




share|cite|improve this question











Say I have to find p/q mod q .
So my first intuition was using modular Inverse of q mod q but then it doesn't exist so now what should I do ?



Note : I don't want to first divide and then find the mod .





modular-arithmetic





share|cite|improve this question










share|cite|improve this question




share|cite|improve this question









asked 2 days ago









Apoorv Jain

367211




367211




put on hold as unclear what you're asking by Apoorv Jain, Jyrki Lahtonen, Mohammad Riazi-Kermani, hardmath, John Ma 2 days ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.






put on hold as unclear what you're asking by Apoorv Jain, Jyrki Lahtonen, Mohammad Riazi-Kermani, hardmath, John Ma 2 days ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.









  • 1




    Is $p$ a multiple of $q$ (e.g. $p=12, ;q=3, ;p/q = 4, ;p/q mod q = 1)?$ If not how do you define $p/q mod q ?$ Give an example.
    – gammatester
    2 days ago










  • Yes p is a multiple of q .
    – Apoorv Jain
    2 days ago










  • While you may not want "to first divide and then find the mod", that is probably what the expression means. Please add parentheses to make the expression unambiguous, and consider learning MathJax and $LaTeX$ since you've been around awhile.
    – hardmath
    2 days ago












  • 1




    Is $p$ a multiple of $q$ (e.g. $p=12, ;q=3, ;p/q = 4, ;p/q mod q = 1)?$ If not how do you define $p/q mod q ?$ Give an example.
    – gammatester
    2 days ago










  • Yes p is a multiple of q .
    – Apoorv Jain
    2 days ago










  • While you may not want "to first divide and then find the mod", that is probably what the expression means. Please add parentheses to make the expression unambiguous, and consider learning MathJax and $LaTeX$ since you've been around awhile.
    – hardmath
    2 days ago







1




1




Is $p$ a multiple of $q$ (e.g. $p=12, ;q=3, ;p/q = 4, ;p/q mod q = 1)?$ If not how do you define $p/q mod q ?$ Give an example.
– gammatester
2 days ago




Is $p$ a multiple of $q$ (e.g. $p=12, ;q=3, ;p/q = 4, ;p/q mod q = 1)?$ If not how do you define $p/q mod q ?$ Give an example.
– gammatester
2 days ago












Yes p is a multiple of q .
– Apoorv Jain
2 days ago




Yes p is a multiple of q .
– Apoorv Jain
2 days ago












While you may not want "to first divide and then find the mod", that is probably what the expression means. Please add parentheses to make the expression unambiguous, and consider learning MathJax and $LaTeX$ since you've been around awhile.
– hardmath
2 days ago




While you may not want "to first divide and then find the mod", that is probably what the expression means. Please add parentheses to make the expression unambiguous, and consider learning MathJax and $LaTeX$ since you've been around awhile.
– hardmath
2 days ago















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