Is 31980 a prime number?

31 980 is an even number, because it is evenly divisible by 2: 31 980 / 2 = 15 990.

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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 31 980 is about 178.830.

Thus, the square root of 31 980 is not an integer, and therefore 31 980 is not a square number.

The square of a number (here 31 980) is the result of the product of this number (31 980) by itself (i.e., 31 980 × 31 980); the square of 31 980 is sometimes called "raising 31 980 to the power 2", or "31 980 squared".

The square of 31 980 is 1 022 720 400 because 31 980 × 31 980 = 31 980² = 1 022 720 400.

As a consequence, 31 980 is the square root of 1 022 720 400.

31 980 is a number with 5 digits.

The multiples of 31 980 are all integers evenly divisible by 31 980, that is all numbers such that the remainder of the division by 31 980 is zero. There are infinitely many multiples of 31 980. The smallest multiples of 31 980 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 31 980 too, since 0 × 31 980 = 0
• 31 980: indeed, 31 980 is a multiple of itself, since 31 980 is evenly divisible by 31 980 (we have 31 980 / 31 980 = 1, so the remainder of this division is indeed zero)
• 63 960: indeed, 63 960 = 31 980 × 2
• 95 940: indeed, 95 940 = 31 980 × 3
• 127 920: indeed, 127 920 = 31 980 × 4
• 159 900: indeed, 159 900 = 31 980 × 5
• etc.

• Preceding numbers: …31 978, 31 979
• Following numbers: 31 981, 31 982…

Nearest numbers from 31 980

• Preceding prime number: 31 973
• Following prime number: 31 981

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• 31 980 est-il un nombre premier ?