# Is 192 a prime number?

It is possible to find out using mathematical methods whether a given integer is a prime number or not.

For 192, the answer is: No, 192 is not a prime number.

The list of all positive divisors (i.e., the list of all integers that divide 192) is as follows: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192.

For 192 to be a prime number, it would have been required that 192 has only two divisors, i.e., itself and 1.

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As a consequence:

- 192 is a multiple of 1
- 192 is a multiple of 2
- 192 is a multiple of 3
- 192 is a multiple of 4
- 192 is a multiple of 6
- 192 is a multiple of 8
- 192 is a multiple of 12
- 192 is a multiple of 16
- 192 is a multiple of 24
- 192 is a multiple of 32
- 192 is a multiple of 48
- 192 is a multiple of 64
- 192 is a multiple of 96

For 192 to be a prime number, it would have been required that 192 has only two divisors, i.e., itself and 1.

### Is 192 a deficient number?

No, 192 is not a deficient number: to be deficient, 192 should have been such that 192 is larger than the sum of its proper divisors, i.e., the divisors of 192 without 192 itself (that is 1 + 2 + 3 + 4 + 6 + 8 + 12 + 16 + 24 + 32 + 48 + 64 + 96 = 316).

In fact, 192 is an abundant number; 192 is strictly smaller than the sum of its proper divisors (that is 1 + 2 + 3 + 4 + 6 + 8 + 12 + 16 + 24 + 32 + 48 + 64 + 96 = 316). The smallest abundant number is 12.