Is 80009 a prime number?

80 009 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 80 009 is about 282.859.

Thus, the square root of 80 009 is not an integer, and therefore 80 009 is not a square number.

The square of a number (here 80 009) is the result of the product of this number (80 009) by itself (i.e., 80 009 × 80 009); the square of 80 009 is sometimes called "raising 80 009 to the power 2", or "80 009 squared".

The square of 80 009 is 6 401 440 081 because 80 009 × 80 009 = 80 009² = 6 401 440 081.

As a consequence, 80 009 is the square root of 6 401 440 081.

80 009 is a number with 5 digits.

The multiples of 80 009 are all integers evenly divisible by 80 009, that is all numbers such that the remainder of the division by 80 009 is zero. There are infinitely many multiples of 80 009. The smallest multiples of 80 009 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 80 009 too, since 0 × 80 009 = 0
• 80 009: indeed, 80 009 is a multiple of itself, since 80 009 is evenly divisible by 80 009 (we have 80 009 / 80 009 = 1, so the remainder of this division is indeed zero)
• 160 018: indeed, 160 018 = 80 009 × 2
• 240 027: indeed, 240 027 = 80 009 × 3
• 320 036: indeed, 320 036 = 80 009 × 4
• 400 045: indeed, 400 045 = 80 009 × 5
• etc.

• Preceding numbers: …80 007, 80 008
• Following numbers: 80 010, 80 011…

Nearest numbers from 80 009

• Preceding prime number: 79 999
• Following prime number: 80 021

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• 80 009 est-il un nombre premier ?