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A Prime number is a number that is divisible only by 1 and itself; it has no other factors. A composite number is a number that is divisible by more than 2 numbers. The only factors of 131 are 1 and itself. Therefore, 131 is a prime number.

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15y ago

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It's prime. Since it's smaller than 122 (which is 144), you only need to check divisibility by 2, 3, 5, 7, or 11.
131 is prime.

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8y ago
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Q: Is 131 prime or composite
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