Is 10021 a prime number?

10 021 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 10 021 is about 100.105.

Thus, the square root of 10 021 is not an integer, and therefore 10 021 is not a square number.

The square of a number (here 10 021) is the result of the product of this number (10 021) by itself (i.e., 10 021 × 10 021); the square of 10 021 is sometimes called "raising 10 021 to the power 2", or "10 021 squared".

The square of 10 021 is 100 420 441 because 10 021 × 10 021 = 10 021² = 100 420 441.

As a consequence, 10 021 is the square root of 100 420 441.

10 021 is a number with 5 digits.

The multiples of 10 021 are all integers evenly divisible by 10 021, that is all numbers such that the remainder of the division by 10 021 is zero. There are infinitely many multiples of 10 021. The smallest multiples of 10 021 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 10 021 too, since 0 × 10 021 = 0
• 10 021: indeed, 10 021 is a multiple of itself, since 10 021 is evenly divisible by 10 021 (we have 10 021 / 10 021 = 1, so the remainder of this division is indeed zero)
• 20 042: indeed, 20 042 = 10 021 × 2
• 30 063: indeed, 30 063 = 10 021 × 3
• 40 084: indeed, 40 084 = 10 021 × 4
• 50 105: indeed, 50 105 = 10 021 × 5
• etc.

• Preceding numbers: …10 019, 10 020
• Following numbers: 10 022, 10 023…

Nearest numbers from 10 021

• Preceding prime number: 10 009
• Following prime number: 10 037

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• 10 021 est-il un nombre premier ?