UKMT Pink Kangaroo, 2023

Combinatorics Difficulty 2.0 Junior Find the answer United Kingdom

Seven different single-digit numbers are written in the circles of the diagram shown with one number in each circle. The product of the three numbers in each of the three lines of three numbers is the same. Which number is written in the circle containing the question mark?

(A) $2$ (B) $3$ (C) $4$ (D) $6$ (E) $8$

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