Is 404009 a prime number?

404 009 is an odd number, because it is not evenly divisible by 2.

Find out more:

• 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 404 009 is about 635.617.

Thus, the square root of 404 009 is not an integer, and therefore 404 009 is not a square number.

Anyway, 404 009 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 404 009) is the result of the product of this number (404 009) by itself (i.e., 404 009 × 404 009); the square of 404 009 is sometimes called "raising 404 009 to the power 2", or "404 009 squared".

The square of 404 009 is 163 223 272 081 because 404 009 × 404 009 = 404 009² = 163 223 272 081.

As a consequence, 404 009 is the square root of 163 223 272 081.

404 009 is a number with 6 digits.

The multiples of 404 009 are all integers evenly divisible by 404 009, that is all numbers such that the remainder of the division by 404 009 is zero. There are infinitely many multiples of 404 009. The smallest multiples of 404 009 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 404 009 too, since 0 × 404 009 = 0
• 404 009: indeed, 404 009 is a multiple of itself, since 404 009 is evenly divisible by 404 009 (we have 404 009 / 404 009 = 1, so the remainder of this division is indeed zero)
• 808 018: indeed, 808 018 = 404 009 × 2
• 1 212 027: indeed, 1 212 027 = 404 009 × 3
• 1 616 036: indeed, 1 616 036 = 404 009 × 4
• 2 020 045: indeed, 2 020 045 = 404 009 × 5
• etc.

• Preceding numbers: …404 007, 404 008
• Following numbers: 404 010, 404 011…

Nearest numbers from 404 009

• Preceding prime number: 403 993
• Following prime number: 404 011

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• 404 009 est-il un nombre premier ?