Is 401421 a prime number?

401 421 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 401 421 is about 633.578.

Thus, the square root of 401 421 is not an integer, and therefore 401 421 is not a square number.

The square of a number (here 401 421) is the result of the product of this number (401 421) by itself (i.e., 401 421 × 401 421); the square of 401 421 is sometimes called "raising 401 421 to the power 2", or "401 421 squared".

The square of 401 421 is 161 138 819 241 because 401 421 × 401 421 = 401 421² = 161 138 819 241.

As a consequence, 401 421 is the square root of 161 138 819 241.

401 421 is a number with 6 digits.

The multiples of 401 421 are all integers evenly divisible by 401 421, that is all numbers such that the remainder of the division by 401 421 is zero. There are infinitely many multiples of 401 421. The smallest multiples of 401 421 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 401 421 too, since 0 × 401 421 = 0
• 401 421: indeed, 401 421 is a multiple of itself, since 401 421 is evenly divisible by 401 421 (we have 401 421 / 401 421 = 1, so the remainder of this division is indeed zero)
• 802 842: indeed, 802 842 = 401 421 × 2
• 1 204 263: indeed, 1 204 263 = 401 421 × 3
• 1 605 684: indeed, 1 605 684 = 401 421 × 4
• 2 007 105: indeed, 2 007 105 = 401 421 × 5
• etc.

• Preceding numbers: …401 419, 401 420
• Following numbers: 401 422, 401 423…

Nearest numbers from 401 421

• Preceding prime number: 401 417
• Following prime number: 401 473

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• 401 421 est-il un nombre premier ?