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70 (seventy) is a positive integer following 69 and preceding 71. Its ordinal form is written "seventieth" or 70th.

Properties Edit

70 is an even composite number.

69! < googol < 70!. Many scientific calculators overflow at googol, so 70! is the least factorial number that cannot be stored on such calculators.

In googology Edit

70

In Greek-based number-naming systems, 70 is associated with prefix "heptaconta-", and with prefix "septuaginti-" in Latin systems.