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There are four three-digit n...

There are four three-digit numbers that share this property: the number itself, its double and its triple contain each digit from 1 to 9 exactly once. For example, 192 is one of them because 192, 384, 576 contain 1 to 9 each once. 273 is another one of them because 273, 546, 819 contain 1 to 9 each once. Can you find the other two numbers and calculate the product of these two numbers?

Correct answers: 23

The first user who solved this task is Djordje Timotijevic.

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Multi-organ transplant

In 1968, Dr. Michael E. DeBakey of Houston led the first simultaneous multi-organ transplant from one donor to four recipients. Two kidneys, one lobe of a lung and the heart were removed from a 20-yr-old women who died from a gunshot. The organs were transplanted into four men at Methodist Hospital, Houston, Texas. . The surgery, which began within eight hours of the woman's death, was performed by five teams totalling more than 60 physicians, nurses and support persons. The heart, lobe of a lung, and two kidneys were transplanted into men aged 50, 39, 41 and 22 respectively. DeBakey was a pioneer in cardiovascular surgery, who had invented or perfected many medical devices, techniques and procedures.«*

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