Is 400988 a prime number?

400 988 is an even number, because it is evenly divisible by 2: 400 988 / 2 = 200 494.

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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 400 988 is about 633.236.

Thus, the square root of 400 988 is not an integer, and therefore 400 988 is not a square number.

The square of a number (here 400 988) is the result of the product of this number (400 988) by itself (i.e., 400 988 × 400 988); the square of 400 988 is sometimes called "raising 400 988 to the power 2", or "400 988 squared".

The square of 400 988 is 160 791 376 144 because 400 988 × 400 988 = 400 988² = 160 791 376 144.

As a consequence, 400 988 is the square root of 160 791 376 144.

400 988 is a number with 6 digits.

The multiples of 400 988 are all integers evenly divisible by 400 988, that is all numbers such that the remainder of the division by 400 988 is zero. There are infinitely many multiples of 400 988. The smallest multiples of 400 988 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 400 988 too, since 0 × 400 988 = 0
• 400 988: indeed, 400 988 is a multiple of itself, since 400 988 is evenly divisible by 400 988 (we have 400 988 / 400 988 = 1, so the remainder of this division is indeed zero)
• 801 976: indeed, 801 976 = 400 988 × 2
• 1 202 964: indeed, 1 202 964 = 400 988 × 3
• 1 603 952: indeed, 1 603 952 = 400 988 × 4
• 2 004 940: indeed, 2 004 940 = 400 988 × 5
• etc.

• Preceding numbers: …400 986, 400 987
• Following numbers: 400 989, 400 990…

Nearest numbers from 400 988

• Preceding prime number: 400 963
• Following prime number: 400 997

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• 400 988 est-il un nombre premier ?