Is 42109 a prime number?

42 109 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 42 109 is about 205.205.

Thus, the square root of 42 109 is not an integer, and therefore 42 109 is not a square number.

The square of a number (here 42 109) is the result of the product of this number (42 109) by itself (i.e., 42 109 × 42 109); the square of 42 109 is sometimes called "raising 42 109 to the power 2", or "42 109 squared".

The square of 42 109 is 1 773 167 881 because 42 109 × 42 109 = 42 109² = 1 773 167 881.

As a consequence, 42 109 is the square root of 1 773 167 881.

42 109 is a number with 5 digits.

The multiples of 42 109 are all integers evenly divisible by 42 109, that is all numbers such that the remainder of the division by 42 109 is zero. There are infinitely many multiples of 42 109. The smallest multiples of 42 109 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 109 too, since 0 × 42 109 = 0
• 42 109: indeed, 42 109 is a multiple of itself, since 42 109 is evenly divisible by 42 109 (we have 42 109 / 42 109 = 1, so the remainder of this division is indeed zero)
• 84 218: indeed, 84 218 = 42 109 × 2
• 126 327: indeed, 126 327 = 42 109 × 3
• 168 436: indeed, 168 436 = 42 109 × 4
• 210 545: indeed, 210 545 = 42 109 × 5
• etc.

• Preceding numbers: …42 107, 42 108
• Following numbers: 42 110, 42 111…

Nearest numbers from 42 109

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

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• 42 109 est-il un nombre premier ?