Is 400443 a prime number?

400 443 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 400 443 is about 632.806.

Thus, the square root of 400 443 is not an integer, and therefore 400 443 is not a square number.

The square of a number (here 400 443) is the result of the product of this number (400 443) by itself (i.e., 400 443 × 400 443); the square of 400 443 is sometimes called "raising 400 443 to the power 2", or "400 443 squared".

The square of 400 443 is 160 354 596 249 because 400 443 × 400 443 = 400 443² = 160 354 596 249.

As a consequence, 400 443 is the square root of 160 354 596 249.

400 443 is a number with 6 digits.

The multiples of 400 443 are all integers evenly divisible by 400 443, that is all numbers such that the remainder of the division by 400 443 is zero. There are infinitely many multiples of 400 443. The smallest multiples of 400 443 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 400 443 too, since 0 × 400 443 = 0
• 400 443: indeed, 400 443 is a multiple of itself, since 400 443 is evenly divisible by 400 443 (we have 400 443 / 400 443 = 1, so the remainder of this division is indeed zero)
• 800 886: indeed, 800 886 = 400 443 × 2
• 1 201 329: indeed, 1 201 329 = 400 443 × 3
• 1 601 772: indeed, 1 601 772 = 400 443 × 4
• 2 002 215: indeed, 2 002 215 = 400 443 × 5
• etc.

• Preceding numbers: …400 441, 400 442
• Following numbers: 400 444, 400 445…

Nearest numbers from 400 443

• Preceding prime number: 400 441
• Following prime number: 400 457

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• 400 443 est-il un nombre premier ?