The Odds of Recurrence of Nonconformities

B

biboy2012

A nonconformity A happens every 13 years.

Another nonconformity happens every 17 years.

How to calculate when they happen together again?
 

Ninja

Looking for Reality
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Re: Recurence of nonconformities

Since both are prime numbers, it would simply be the product of the two numbers: 221 years after the last time they occurred together.

It would be a bit more invloved if they were not both prime.
 
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T

tyker

Re: Recurence of nonconformities

If they're that predictable, preventive action should be a piece of cake.
 
B

biboy2012

Re: Recurence of nonconformities

Since both are prime numbers, it would simply be the product of the two numbers: 221 years after the last time they occurred together.

It would be a bit more invloved if they were not both prime.
That was very quick!
 
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