Is 996 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
For 996, the answer is: No, 996 is not a prime number.
The list of all positive divisors (i.e., the list of all integers that divide 996) is as follows: 1, 2, 3, 4, 6, 12, 83, 166, 249, 332, 498, 996.
For 996 to be a prime number, it would have been required that 996 has only two divisors, i.e., itself and 1.
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As a consequence:
- 996 is a multiple of 1
- 996 is a multiple of 2
- 996 is a multiple of 3
- 996 is a multiple of 4
- 996 is a multiple of 6
- 996 is a multiple of 12
- 996 is a multiple of 83
- 996 is a multiple of 166
- 996 is a multiple of 249
- 996 is a multiple of 332
- 996 is a multiple of 498
For 996 to be a prime number, it would have been required that 996 has only two divisors, i.e., itself and 1.
Is 996 a deficient number?
No, 996 is not a deficient number: to be deficient, 996 should have been such that 996 is larger than the sum of its proper divisors, i.e., the divisors of 996 without 996 itself (that is 1 + 2 + 3 + 4 + 6 + 12 + 83 + 166 + 249 + 332 + 498 = 1 356).
In fact, 996 is an abundant number; 996 is strictly smaller than the sum of its proper divisors (that is 1 + 2 + 3 + 4 + 6 + 12 + 83 + 166 + 249 + 332 + 498 = 1 356). The smallest abundant number is 12.