Is 200421 a prime number?

200 421 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 200 421 is about 447.684.

Thus, the square root of 200 421 is not an integer, and therefore 200 421 is not a square number.

The square of a number (here 200 421) is the result of the product of this number (200 421) by itself (i.e., 200 421 × 200 421); the square of 200 421 is sometimes called "raising 200 421 to the power 2", or "200 421 squared".

The square of 200 421 is 40 168 577 241 because 200 421 × 200 421 = 200 421² = 40 168 577 241.

As a consequence, 200 421 is the square root of 40 168 577 241.

200 421 is a number with 6 digits.

The multiples of 200 421 are all integers evenly divisible by 200 421, that is all numbers such that the remainder of the division by 200 421 is zero. There are infinitely many multiples of 200 421. The smallest multiples of 200 421 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 200 421 too, since 0 × 200 421 = 0
• 200 421: indeed, 200 421 is a multiple of itself, since 200 421 is evenly divisible by 200 421 (we have 200 421 / 200 421 = 1, so the remainder of this division is indeed zero)
• 400 842: indeed, 400 842 = 200 421 × 2
• 601 263: indeed, 601 263 = 200 421 × 3
• 801 684: indeed, 801 684 = 200 421 × 4
• 1 002 105: indeed, 1 002 105 = 200 421 × 5
• etc.

• Preceding numbers: …200 419, 200 420
• Following numbers: 200 422, 200 423…

Nearest numbers from 200 421

• Preceding prime number: 200 407
• Following prime number: 200 437

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• 200 421 est-il un nombre premier ?