Is 31871 a prime number?

31 871 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 31 871 is about 178.525.

Thus, the square root of 31 871 is not an integer, and therefore 31 871 is not a square number.

The square of a number (here 31 871) is the result of the product of this number (31 871) by itself (i.e., 31 871 × 31 871); the square of 31 871 is sometimes called "raising 31 871 to the power 2", or "31 871 squared".

The square of 31 871 is 1 015 760 641 because 31 871 × 31 871 = 31 871² = 1 015 760 641.

As a consequence, 31 871 is the square root of 1 015 760 641.

31 871 is a number with 5 digits.

The multiples of 31 871 are all integers evenly divisible by 31 871, that is all numbers such that the remainder of the division by 31 871 is zero. There are infinitely many multiples of 31 871. The smallest multiples of 31 871 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 31 871 too, since 0 × 31 871 = 0
• 31 871: indeed, 31 871 is a multiple of itself, since 31 871 is evenly divisible by 31 871 (we have 31 871 / 31 871 = 1, so the remainder of this division is indeed zero)
• 63 742: indeed, 63 742 = 31 871 × 2
• 95 613: indeed, 95 613 = 31 871 × 3
• 127 484: indeed, 127 484 = 31 871 × 4
• 159 355: indeed, 159 355 = 31 871 × 5
• etc.

• Preceding numbers: …31 869, 31 870
• Following numbers: 31 872, 31 873…

Nearest numbers from 31 871

• Preceding prime number: 31 859
• Following prime number: 31 873

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• 31 871 est-il un nombre premier ?