Is 27791 a prime number?

27 791 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 27 791 is about 166.706.

Thus, the square root of 27 791 is not an integer, and therefore 27 791 is not a square number.

Anyway, 27 791 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 27 791) is the result of the product of this number (27 791) by itself (i.e., 27 791 × 27 791); the square of 27 791 is sometimes called "raising 27 791 to the power 2", or "27 791 squared".

The square of 27 791 is 772 339 681 because 27 791 × 27 791 = 27 791² = 772 339 681.

As a consequence, 27 791 is the square root of 772 339 681.

27 791 is a number with 5 digits.

The multiples of 27 791 are all integers evenly divisible by 27 791, that is all numbers such that the remainder of the division by 27 791 is zero. There are infinitely many multiples of 27 791. The smallest multiples of 27 791 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 27 791 too, since 0 × 27 791 = 0
• 27 791: indeed, 27 791 is a multiple of itself, since 27 791 is evenly divisible by 27 791 (we have 27 791 / 27 791 = 1, so the remainder of this division is indeed zero)
• 55 582: indeed, 55 582 = 27 791 × 2
• 83 373: indeed, 83 373 = 27 791 × 3
• 111 164: indeed, 111 164 = 27 791 × 4
• 138 955: indeed, 138 955 = 27 791 × 5
• etc.

• Preceding numbers: …27 789, 27 790
• Following numbers: 27 792, 27 793…

Nearest numbers from 27 791

• Preceding prime number: 27 779
• Following prime number: 27 793

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• 27 791 est-il un nombre premier ?