Is 43009 a prime number?

43 009 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 43 009 is about 207.386.

Thus, the square root of 43 009 is not an integer, and therefore 43 009 is not a square number.

The square of a number (here 43 009) is the result of the product of this number (43 009) by itself (i.e., 43 009 × 43 009); the square of 43 009 is sometimes called "raising 43 009 to the power 2", or "43 009 squared".

The square of 43 009 is 1 849 774 081 because 43 009 × 43 009 = 43 009² = 1 849 774 081.

As a consequence, 43 009 is the square root of 1 849 774 081.

43 009 is a number with 5 digits.

The multiples of 43 009 are all integers evenly divisible by 43 009, that is all numbers such that the remainder of the division by 43 009 is zero. There are infinitely many multiples of 43 009. The smallest multiples of 43 009 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 43 009 too, since 0 × 43 009 = 0
• 43 009: indeed, 43 009 is a multiple of itself, since 43 009 is evenly divisible by 43 009 (we have 43 009 / 43 009 = 1, so the remainder of this division is indeed zero)
• 86 018: indeed, 86 018 = 43 009 × 2
• 129 027: indeed, 129 027 = 43 009 × 3
• 172 036: indeed, 172 036 = 43 009 × 4
• 215 045: indeed, 215 045 = 43 009 × 5
• etc.

• Preceding numbers: …43 007, 43 008
• Following numbers: 43 010, 43 011…

Nearest numbers from 43 009

• Preceding prime number: 43 003
• Following prime number: 43 013

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• 43 009 est-il un nombre premier ?