Is 5109 a prime number?

5 109 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 5 109 is about 71.477.

Thus, the square root of 5 109 is not an integer, and therefore 5 109 is not a square number.

The square of a number (here 5 109) is the result of the product of this number (5 109) by itself (i.e., 5 109 × 5 109); the square of 5 109 is sometimes called "raising 5 109 to the power 2", or "5 109 squared".

The square of 5 109 is 26 101 881 because 5 109 × 5 109 = 5 109² = 26 101 881.

As a consequence, 5 109 is the square root of 26 101 881.

5 109 is a number with 4 digits.

The multiples of 5 109 are all integers evenly divisible by 5 109, that is all numbers such that the remainder of the division by 5 109 is zero. There are infinitely many multiples of 5 109. The smallest multiples of 5 109 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 5 109 too, since 0 × 5 109 = 0
• 5 109: indeed, 5 109 is a multiple of itself, since 5 109 is evenly divisible by 5 109 (we have 5 109 / 5 109 = 1, so the remainder of this division is indeed zero)
• 10 218: indeed, 10 218 = 5 109 × 2
• 15 327: indeed, 15 327 = 5 109 × 3
• 20 436: indeed, 20 436 = 5 109 × 4
• 25 545: indeed, 25 545 = 5 109 × 5
• etc.

• Preceding numbers: …5 107, 5 108
• Following numbers: 5 110, 5 111…

Nearest numbers from 5 109

• Preceding prime number: 5 107
• Following prime number: 5 113

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• 5 109 est-il un nombre premier ?