Is 354 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
For 354, the answer is: No, 354 is not a prime number.
The list of all positive divisors (i.e., the list of all integers that divide 354) is as follows: 1, 2, 3, 6, 59, 118, 177, 354.
For 354 to be a prime number, it would have been required that 354 has only two divisors, i.e., itself and 1.
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As a consequence:
- 354 is a multiple of 1
- 354 is a multiple of 2
- 354 is a multiple of 3
- 354 is a multiple of 6
- 354 is a multiple of 59
- 354 is a multiple of 118
- 354 is a multiple of 177
For 354 to be a prime number, it would have been required that 354 has only two divisors, i.e., itself and 1.
Is 354 a deficient number?
No, 354 is not a deficient number: to be deficient, 354 should have been such that 354 is larger than the sum of its proper divisors, i.e., the divisors of 354 without 354 itself (that is 1 + 2 + 3 + 6 + 59 + 118 + 177 = 366).
In fact, 354 is an abundant number; 354 is strictly smaller than the sum of its proper divisors (that is 1 + 2 + 3 + 6 + 59 + 118 + 177 = 366). The smallest abundant number is 12.