Is 3988021 a prime number?

3 988 021 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 3 988 021 is about 1 997.003.

Thus, the square root of 3 988 021 is not an integer, and therefore 3 988 021 is not a square number.

Anyway, 3 988 021 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 3 988 021) is the result of the product of this number (3 988 021) by itself (i.e., 3 988 021 × 3 988 021); the square of 3 988 021 is sometimes called "raising 3 988 021 to the power 2", or "3 988 021 squared".

The square of 3 988 021 is 15 904 311 496 441 because 3 988 021 × 3 988 021 = 3 988 021² = 15 904 311 496 441.

As a consequence, 3 988 021 is the square root of 15 904 311 496 441.

3 988 021 is a number with 7 digits.

The multiples of 3 988 021 are all integers evenly divisible by 3 988 021, that is all numbers such that the remainder of the division by 3 988 021 is zero. There are infinitely many multiples of 3 988 021. The smallest multiples of 3 988 021 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 3 988 021 too, since 0 × 3 988 021 = 0
• 3 988 021: indeed, 3 988 021 is a multiple of itself, since 3 988 021 is evenly divisible by 3 988 021 (we have 3 988 021 / 3 988 021 = 1, so the remainder of this division is indeed zero)
• 7 976 042: indeed, 7 976 042 = 3 988 021 × 2
• 11 964 063: indeed, 11 964 063 = 3 988 021 × 3
• 15 952 084: indeed, 15 952 084 = 3 988 021 × 4
• 19 940 105: indeed, 19 940 105 = 3 988 021 × 5
• etc.

• Preceding numbers: …3 988 019, 3 988 020
• Following numbers: 3 988 022, 3 988 023…

Nearest numbers from 3 988 021

• Preceding prime number: 3 988 007
• Following prime number: 3 988 027

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• 3 988 021 est-il un nombre premier ?