Is 42129 a prime number?

42 129 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 42 129 is about 205.254.

Thus, the square root of 42 129 is not an integer, and therefore 42 129 is not a square number.

The square of a number (here 42 129) is the result of the product of this number (42 129) by itself (i.e., 42 129 × 42 129); the square of 42 129 is sometimes called "raising 42 129 to the power 2", or "42 129 squared".

The square of 42 129 is 1 774 852 641 because 42 129 × 42 129 = 42 129² = 1 774 852 641.

As a consequence, 42 129 is the square root of 1 774 852 641.

42 129 is a number with 5 digits.

The multiples of 42 129 are all integers evenly divisible by 42 129, that is all numbers such that the remainder of the division by 42 129 is zero. There are infinitely many multiples of 42 129. The smallest multiples of 42 129 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 129 too, since 0 × 42 129 = 0
• 42 129: indeed, 42 129 is a multiple of itself, since 42 129 is evenly divisible by 42 129 (we have 42 129 / 42 129 = 1, so the remainder of this division is indeed zero)
• 84 258: indeed, 84 258 = 42 129 × 2
• 126 387: indeed, 126 387 = 42 129 × 3
• 168 516: indeed, 168 516 = 42 129 × 4
• 210 645: indeed, 210 645 = 42 129 × 5
• etc.

• Preceding numbers: …42 127, 42 128
• Following numbers: 42 130, 42 131…

Nearest numbers from 42 129

• Preceding prime number: 42 101
• Following prime number: 42 131

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• 42 129 est-il un nombre premier ?