Is 42279 a prime number?

42 279 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 42 279 is about 205.619.

Thus, the square root of 42 279 is not an integer, and therefore 42 279 is not a square number.

The square of a number (here 42 279) is the result of the product of this number (42 279) by itself (i.e., 42 279 × 42 279); the square of 42 279 is sometimes called "raising 42 279 to the power 2", or "42 279 squared".

The square of 42 279 is 1 787 513 841 because 42 279 × 42 279 = 42 279² = 1 787 513 841.

As a consequence, 42 279 is the square root of 1 787 513 841.

42 279 is a number with 5 digits.

The multiples of 42 279 are all integers evenly divisible by 42 279, that is all numbers such that the remainder of the division by 42 279 is zero. There are infinitely many multiples of 42 279. The smallest multiples of 42 279 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 279 too, since 0 × 42 279 = 0
• 42 279: indeed, 42 279 is a multiple of itself, since 42 279 is evenly divisible by 42 279 (we have 42 279 / 42 279 = 1, so the remainder of this division is indeed zero)
• 84 558: indeed, 84 558 = 42 279 × 2
• 126 837: indeed, 126 837 = 42 279 × 3
• 169 116: indeed, 169 116 = 42 279 × 4
• 211 395: indeed, 211 395 = 42 279 × 5
• etc.

• Preceding numbers: …42 277, 42 278
• Following numbers: 42 280, 42 281…

Nearest numbers from 42 279

• Preceding prime number: 42 257
• Following prime number: 42 281

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• 42 279 est-il un nombre premier ?