Logarithmen 20

Bestimme den Numerus, wenn die Basis in der Klammer steht.
log(5) x = 4
log(3) x = 5
log(8) x = 3
log(9) x = 3
log(2) x = 7
log(3) x = 6
log(8) x = 4
log(11) x = 3
log(12) x = 3
log(15) x = 3
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