Pyramid Z8–I–6

Each brick of pyramid contains one number. Whenever possible, the number in each brick is lowest common multiple of two numbers of bricks lying directly above it.
That number may be in the lowest brick? Determine all possibilities.

Correct result:

x1 =  2730


13 ... primenumber 14=27 30=235 LCM(13,14,30)=235713=2730  x1=LCM(13,14,30)=2730

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