Is 123138 a prime number?

123 138 is an even number, because it is evenly divisible by 2: 123 138 / 2 = 61 569.

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 123 138 is about 350.910.

Thus, the square root of 123 138 is not an integer, and therefore 123 138 is not a square number.

The square of a number (here 123 138) is the result of the product of this number (123 138) by itself (i.e., 123 138 × 123 138); the square of 123 138 is sometimes called "raising 123 138 to the power 2", or "123 138 squared".

The square of 123 138 is 15 162 967 044 because 123 138 × 123 138 = 123 138² = 15 162 967 044.

As a consequence, 123 138 is the square root of 15 162 967 044.

123 138 is a number with 6 digits.

The multiples of 123 138 are all integers evenly divisible by 123 138, that is all numbers such that the remainder of the division by 123 138 is zero. There are infinitely many multiples of 123 138. The smallest multiples of 123 138 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 123 138 too, since 0 × 123 138 = 0
• 123 138: indeed, 123 138 is a multiple of itself, since 123 138 is evenly divisible by 123 138 (we have 123 138 / 123 138 = 1, so the remainder of this division is indeed zero)
• 246 276: indeed, 246 276 = 123 138 × 2
• 369 414: indeed, 369 414 = 123 138 × 3
• 492 552: indeed, 492 552 = 123 138 × 4
• 615 690: indeed, 615 690 = 123 138 × 5
• etc.

• Preceding numbers: …123 136, 123 137
• Following numbers: 123 139, 123 140…

Nearest numbers from 123 138

• Preceding prime number: 123 127
• Following prime number: 123 143

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• 123 138 est-il un nombre premier ?