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Calculate the number 253

NUMBERMANIA: Calculate the number 253 using numbers [8, 2, 3, 6, 40, 156] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 11

The first user who solved this task is Nasrin 24 T.

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Ruth Sager

Died 29 Mar 1997 at age 79 (born 7 Feb 1918).American cellular geneticist whose research (1950's - 60's) altered the prevailing view about where genetic material was within the cell. In particular, she recognized that a second set of genes were found outside of the cell's nucleus. Even though they were nonchrosomomal, these genes also influenced inherited characteristics. Previously, only the chromosomal genes had been considered to control genetic behaviour. Her research in later life turned to the study of genetic mechanisms involved in cancer. She was among the first to study the role of mutations in suppressor genes that neutralized their restraint on cell reproduction.«

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