Is 20017009 a prime number?

20 017 009 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 20 017 009 is about 4 474.037.

Thus, the square root of 20 017 009 is not an integer, and therefore 20 017 009 is not a square number.

Anyway, 20 017 009 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 20 017 009) is the result of the product of this number (20 017 009) by itself (i.e., 20 017 009 × 20 017 009); the square of 20 017 009 is sometimes called "raising 20 017 009 to the power 2", or "20 017 009 squared".

The square of 20 017 009 is 400 680 649 306 081 because 20 017 009 × 20 017 009 = 20 017 009² = 400 680 649 306 081.

As a consequence, 20 017 009 is the square root of 400 680 649 306 081.

20 017 009 is a number with 8 digits.

The multiples of 20 017 009 are all integers evenly divisible by 20 017 009, that is all numbers such that the remainder of the division by 20 017 009 is zero. There are infinitely many multiples of 20 017 009. The smallest multiples of 20 017 009 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 20 017 009 too, since 0 × 20 017 009 = 0
• 20 017 009: indeed, 20 017 009 is a multiple of itself, since 20 017 009 is evenly divisible by 20 017 009 (we have 20 017 009 / 20 017 009 = 1, so the remainder of this division is indeed zero)
• 40 034 018: indeed, 40 034 018 = 20 017 009 × 2
• 60 051 027: indeed, 60 051 027 = 20 017 009 × 3
• 80 068 036: indeed, 80 068 036 = 20 017 009 × 4
• 100 085 045: indeed, 100 085 045 = 20 017 009 × 5
• etc.

• Preceding numbers: …20 017 007, 20 017 008
• Following numbers: 20 017 010, 20 017 011…

Nearest numbers from 20 017 009

• Preceding prime number: 20 017 001
• Following prime number: 20 017 031

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• 20 017 009 est-il un nombre premier ?