Is 4021 a prime number?

4 021 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 4 021 is about 63.411.

Thus, the square root of 4 021 is not an integer, and therefore 4 021 is not a square number.

Anyway, 4 021 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 4 021) is the result of the product of this number (4 021) by itself (i.e., 4 021 × 4 021); the square of 4 021 is sometimes called "raising 4 021 to the power 2", or "4 021 squared".

The square of 4 021 is 16 168 441 because 4 021 × 4 021 = 4 021² = 16 168 441.

As a consequence, 4 021 is the square root of 16 168 441.

4 021 is a number with 4 digits.

The multiples of 4 021 are all integers evenly divisible by 4 021, that is all numbers such that the remainder of the division by 4 021 is zero. There are infinitely many multiples of 4 021. The smallest multiples of 4 021 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 4 021 too, since 0 × 4 021 = 0
• 4 021: indeed, 4 021 is a multiple of itself, since 4 021 is evenly divisible by 4 021 (we have 4 021 / 4 021 = 1, so the remainder of this division is indeed zero)
• 8 042: indeed, 8 042 = 4 021 × 2
• 12 063: indeed, 12 063 = 4 021 × 3
• 16 084: indeed, 16 084 = 4 021 × 4
• 20 105: indeed, 20 105 = 4 021 × 5
• etc.

• Preceding numbers: …4 019, 4 020
• Following numbers: 4 022, 4 023…

Nearest numbers from 4 021

• Preceding prime number: 4 019
• Following prime number: 4 027

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• 4 021 est-il un nombre premier ?