recently I saw the following curio
somewhere out there:
123456789 = ((86+2×7)^5–91)/3^4
uses the same 9 digits in both parts of the equality, only
once in each side.
b) uses all the four arithmetical basic operators and the
power operator, plus parentheses.
c) uses four (4) primes: 2, 3, 5, & 7 and three composites
4, 86 & 91.
we ask for other similar arithmetical expressions of
123456789 but using more than four prime numbers. Hint: the
maximal quantity of primes that you may use is six (6)
Q1. Send your best
expression for 123456789 (maximal quantity of primes)
Q2. Redo Q1 for