Is 28020 a prime number?

28 020 is an even number, because it is evenly divisible by 2: 28 020 / 2 = 14 010.

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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 28 020 is about 167.392.

Thus, the square root of 28 020 is not an integer, and therefore 28 020 is not a square number.

The square of a number (here 28 020) is the result of the product of this number (28 020) by itself (i.e., 28 020 × 28 020); the square of 28 020 is sometimes called "raising 28 020 to the power 2", or "28 020 squared".

The square of 28 020 is 785 120 400 because 28 020 × 28 020 = 28 020² = 785 120 400.

As a consequence, 28 020 is the square root of 785 120 400.

28 020 is a number with 5 digits.

The multiples of 28 020 are all integers evenly divisible by 28 020, that is all numbers such that the remainder of the division by 28 020 is zero. There are infinitely many multiples of 28 020. The smallest multiples of 28 020 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 28 020 too, since 0 × 28 020 = 0
• 28 020: indeed, 28 020 is a multiple of itself, since 28 020 is evenly divisible by 28 020 (we have 28 020 / 28 020 = 1, so the remainder of this division is indeed zero)
• 56 040: indeed, 56 040 = 28 020 × 2
• 84 060: indeed, 84 060 = 28 020 × 3
• 112 080: indeed, 112 080 = 28 020 × 4
• 140 100: indeed, 140 100 = 28 020 × 5
• etc.

• Preceding numbers: …28 018, 28 019
• Following numbers: 28 021, 28 022…

Nearest numbers from 28 020

• Preceding prime number: 28 019
• Following prime number: 28 027

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• 28 020 est-il un nombre premier ?