Is 3985 a prime number?

3 985 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 3 985 is about 63.127.

Thus, the square root of 3 985 is not an integer, and therefore 3 985 is not a square number.

The square of a number (here 3 985) is the result of the product of this number (3 985) by itself (i.e., 3 985 × 3 985); the square of 3 985 is sometimes called "raising 3 985 to the power 2", or "3 985 squared".

The square of 3 985 is 15 880 225 because 3 985 × 3 985 = 3 985² = 15 880 225.

As a consequence, 3 985 is the square root of 15 880 225.

3 985 is a number with 4 digits.

The multiples of 3 985 are all integers evenly divisible by 3 985, that is all numbers such that the remainder of the division by 3 985 is zero. There are infinitely many multiples of 3 985. The smallest multiples of 3 985 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 3 985 too, since 0 × 3 985 = 0
• 3 985: indeed, 3 985 is a multiple of itself, since 3 985 is evenly divisible by 3 985 (we have 3 985 / 3 985 = 1, so the remainder of this division is indeed zero)
• 7 970: indeed, 7 970 = 3 985 × 2
• 11 955: indeed, 11 955 = 3 985 × 3
• 15 940: indeed, 15 940 = 3 985 × 4
• 19 925: indeed, 19 925 = 3 985 × 5
• etc.

• Preceding numbers: …3 983, 3 984
• Following numbers: 3 986, 3 987…

Nearest numbers from 3 985

• Preceding prime number: 3 967
• Following prime number: 3 989

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• 3 985 est-il un nombre premier ?