Is 1191 a prime number?

1 191 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 1 191 is about 34.511.

Thus, the square root of 1 191 is not an integer, and therefore 1 191 is not a square number.

The square of a number (here 1 191) is the result of the product of this number (1 191) by itself (i.e., 1 191 × 1 191); the square of 1 191 is sometimes called "raising 1 191 to the power 2", or "1 191 squared".

The square of 1 191 is 1 418 481 because 1 191 × 1 191 = 1 191² = 1 418 481.

As a consequence, 1 191 is the square root of 1 418 481.

1 191 is a number with 4 digits.

The multiples of 1 191 are all integers evenly divisible by 1 191, that is all numbers such that the remainder of the division by 1 191 is zero. There are infinitely many multiples of 1 191. The smallest multiples of 1 191 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 1 191 too, since 0 × 1 191 = 0
• 1 191: indeed, 1 191 is a multiple of itself, since 1 191 is evenly divisible by 1 191 (we have 1 191 / 1 191 = 1, so the remainder of this division is indeed zero)
• 2 382: indeed, 2 382 = 1 191 × 2
• 3 573: indeed, 3 573 = 1 191 × 3
• 4 764: indeed, 4 764 = 1 191 × 4
• 5 955: indeed, 5 955 = 1 191 × 5
• etc.

• Preceding numbers: …1 189, 1 190
• Following numbers: 1 192, 1 193…

Nearest numbers from 1 191

• Preceding prime number: 1 187
• Following prime number: 1 193

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• 1 191 est-il un nombre premier ?