Is 3123 a prime number?

3 123 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 3 123 is about 55.884.

Thus, the square root of 3 123 is not an integer, and therefore 3 123 is not a square number.

The square of a number (here 3 123) is the result of the product of this number (3 123) by itself (i.e., 3 123 × 3 123); the square of 3 123 is sometimes called "raising 3 123 to the power 2", or "3 123 squared".

The square of 3 123 is 9 753 129 because 3 123 × 3 123 = 3 123² = 9 753 129.

As a consequence, 3 123 is the square root of 9 753 129.

3 123 is a number with 4 digits.

The multiples of 3 123 are all integers evenly divisible by 3 123, that is all numbers such that the remainder of the division by 3 123 is zero. There are infinitely many multiples of 3 123. The smallest multiples of 3 123 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 3 123 too, since 0 × 3 123 = 0
• 3 123: indeed, 3 123 is a multiple of itself, since 3 123 is evenly divisible by 3 123 (we have 3 123 / 3 123 = 1, so the remainder of this division is indeed zero)
• 6 246: indeed, 6 246 = 3 123 × 2
• 9 369: indeed, 9 369 = 3 123 × 3
• 12 492: indeed, 12 492 = 3 123 × 4
• 15 615: indeed, 15 615 = 3 123 × 5
• etc.

• Preceding numbers: …3 121, 3 122
• Following numbers: 3 124, 3 125…

Nearest numbers from 3 123

• Preceding prime number: 3 121
• Following prime number: 3 137

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• 3 123 est-il un nombre premier ?