139 = CXXXIX
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139 is a prime number as its only factors are 1 and 139.
CXXXVIIII but today it is written out as CXXXIX
139 is a prime number. The only numbers that divide evenly into it are 1 and 139.
139 and 1
CXXXIX in Roman Numerals is CXXIX. In Arabic numbers, it is 139.