Is 42138 a prime number?

42 138 is an even number, because it is evenly divisible by 2: 42 138 / 2 = 21 069.

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 42 138 is about 205.275.

Thus, the square root of 42 138 is not an integer, and therefore 42 138 is not a square number.

The square of a number (here 42 138) is the result of the product of this number (42 138) by itself (i.e., 42 138 × 42 138); the square of 42 138 is sometimes called "raising 42 138 to the power 2", or "42 138 squared".

The square of 42 138 is 1 775 611 044 because 42 138 × 42 138 = 42 138² = 1 775 611 044.

As a consequence, 42 138 is the square root of 1 775 611 044.

42 138 is a number with 5 digits.

The multiples of 42 138 are all integers evenly divisible by 42 138, that is all numbers such that the remainder of the division by 42 138 is zero. There are infinitely many multiples of 42 138. The smallest multiples of 42 138 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 138 too, since 0 × 42 138 = 0
• 42 138: indeed, 42 138 is a multiple of itself, since 42 138 is evenly divisible by 42 138 (we have 42 138 / 42 138 = 1, so the remainder of this division is indeed zero)
• 84 276: indeed, 84 276 = 42 138 × 2
• 126 414: indeed, 126 414 = 42 138 × 3
• 168 552: indeed, 168 552 = 42 138 × 4
• 210 690: indeed, 210 690 = 42 138 × 5
• etc.

• Preceding numbers: …42 136, 42 137
• Following numbers: 42 139, 42 140…

Nearest numbers from 42 138

• Preceding prime number: 42 131
• Following prime number: 42 139

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• 42 138 est-il un nombre premier ?