Is 18231 a prime number?

18 231 is an odd number, because it is not evenly divisible by 2.

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• What is an even number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 18 231 is about 135.022.

Thus, the square root of 18 231 is not an integer, and therefore 18 231 is not a square number.

The square of a number (here 18 231) is the result of the product of this number (18 231) by itself (i.e., 18 231 × 18 231); the square of 18 231 is sometimes called "raising 18 231 to the power 2", or "18 231 squared".

The square of 18 231 is 332 369 361 because 18 231 × 18 231 = 18 231² = 332 369 361.

As a consequence, 18 231 is the square root of 332 369 361.

18 231 is a number with 5 digits.

The multiples of 18 231 are all integers evenly divisible by 18 231, that is all numbers such that the remainder of the division by 18 231 is zero. There are infinitely many multiples of 18 231. The smallest multiples of 18 231 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 18 231 too, since 0 × 18 231 = 0
• 18 231: indeed, 18 231 is a multiple of itself, since 18 231 is evenly divisible by 18 231 (we have 18 231 / 18 231 = 1, so the remainder of this division is indeed zero)
• 36 462: indeed, 36 462 = 18 231 × 2
• 54 693: indeed, 54 693 = 18 231 × 3
• 72 924: indeed, 72 924 = 18 231 × 4
• 91 155: indeed, 91 155 = 18 231 × 5
• etc.

• Preceding numbers: …18 229, 18 230
• Following numbers: 18 232, 18 233…

Nearest numbers from 18 231

• Preceding prime number: 18 229
• Following prime number: 18 233

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• 18 231 est-il un nombre premier ?