139 is prime. It is not divisible by the prime numbers 2,3,5,7,or 11 and is less than 13². 139 is prime. It can't be divided by any positive integer except 1 and 139.
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A prime number only has factors of 1 and itself. 417 can be expressed as 3 · 139, so it is a composite number.
139 is prime
139 is a prime number.
neither prime or composite
It is prime