Posted by
**Ayush** on
.

How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?

Saturday

March 25, 2017
Posted by
**Ayush** on
.

How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?

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