Is 401997 a prime number?

401 997 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 401 997 is about 634.032.

Thus, the square root of 401 997 is not an integer, and therefore 401 997 is not a square number.

The square of a number (here 401 997) is the result of the product of this number (401 997) by itself (i.e., 401 997 × 401 997); the square of 401 997 is sometimes called "raising 401 997 to the power 2", or "401 997 squared".

The square of 401 997 is 161 601 588 009 because 401 997 × 401 997 = 401 997² = 161 601 588 009.

As a consequence, 401 997 is the square root of 161 601 588 009.

401 997 is a number with 6 digits.

The multiples of 401 997 are all integers evenly divisible by 401 997, that is all numbers such that the remainder of the division by 401 997 is zero. There are infinitely many multiples of 401 997. The smallest multiples of 401 997 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 401 997 too, since 0 × 401 997 = 0
• 401 997: indeed, 401 997 is a multiple of itself, since 401 997 is evenly divisible by 401 997 (we have 401 997 / 401 997 = 1, so the remainder of this division is indeed zero)
• 803 994: indeed, 803 994 = 401 997 × 2
• 1 205 991: indeed, 1 205 991 = 401 997 × 3
• 1 607 988: indeed, 1 607 988 = 401 997 × 4
• 2 009 985: indeed, 2 009 985 = 401 997 × 5
• etc.

• Preceding numbers: …401 995, 401 996
• Following numbers: 401 998, 401 999…

Nearest numbers from 401 997

• Preceding prime number: 401 993
• Following prime number: 402 023

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• 401 997 est-il un nombre premier ?