Is 13981 a prime number?

13 981 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 13 981 is about 118.241.

Thus, the square root of 13 981 is not an integer, and therefore 13 981 is not a square number.

The square of a number (here 13 981) is the result of the product of this number (13 981) by itself (i.e., 13 981 × 13 981); the square of 13 981 is sometimes called "raising 13 981 to the power 2", or "13 981 squared".

The square of 13 981 is 195 468 361 because 13 981 × 13 981 = 13 981² = 195 468 361.

As a consequence, 13 981 is the square root of 195 468 361.

13 981 is a number with 5 digits.

The multiples of 13 981 are all integers evenly divisible by 13 981, that is all numbers such that the remainder of the division by 13 981 is zero. There are infinitely many multiples of 13 981. The smallest multiples of 13 981 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 13 981 too, since 0 × 13 981 = 0
• 13 981: indeed, 13 981 is a multiple of itself, since 13 981 is evenly divisible by 13 981 (we have 13 981 / 13 981 = 1, so the remainder of this division is indeed zero)
• 27 962: indeed, 27 962 = 13 981 × 2
• 41 943: indeed, 41 943 = 13 981 × 3
• 55 924: indeed, 55 924 = 13 981 × 4
• 69 905: indeed, 69 905 = 13 981 × 5
• etc.

• Preceding numbers: …13 979, 13 980
• Following numbers: 13 982, 13 983…

Nearest numbers from 13 981

• Preceding prime number: 13 967
• Following prime number: 13 997

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• 13 981 est-il un nombre premier ?