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Fill in the numbers in each empty box, so that product of each 3 adjacent digits is always 30

Fill in the numbers in each empty box, so that product of each 3 adjacent digits is always 30. Write solution as one multi-digit number.

Correct answers: 64

The first user who solved this task is Djordje Timotijevic.

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Claude-Louis Mathieu

Born 25 Nov 1783; died 5 Mar 1875 at age 91.French astronomer and mathematician who worked particularly on the determination of the distances of the stars. He began his career as an engineer, but soon became a mathematician at the Bureau des Longitudes in 1817 and later professor of astronomy in Paris. For many years Claude Mathieu edited the work on population statistics L'Annuaire du Bureau des Longitudes produced by the Bureau des Longitudes. His work in astronomy focussed on determining the distances to stars. He published L'Histoire de l'astronomie au XVIII siècle in 1827.

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