Is 221997 a prime number?

221 997 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 221 997 is about 471.166.

Thus, the square root of 221 997 is not an integer, and therefore 221 997 is not a square number.

The square of a number (here 221 997) is the result of the product of this number (221 997) by itself (i.e., 221 997 × 221 997); the square of 221 997 is sometimes called "raising 221 997 to the power 2", or "221 997 squared".

The square of 221 997 is 49 282 668 009 because 221 997 × 221 997 = 221 997² = 49 282 668 009.

As a consequence, 221 997 is the square root of 49 282 668 009.

221 997 is a number with 6 digits.

The multiples of 221 997 are all integers evenly divisible by 221 997, that is all numbers such that the remainder of the division by 221 997 is zero. There are infinitely many multiples of 221 997. The smallest multiples of 221 997 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 221 997 too, since 0 × 221 997 = 0
• 221 997: indeed, 221 997 is a multiple of itself, since 221 997 is evenly divisible by 221 997 (we have 221 997 / 221 997 = 1, so the remainder of this division is indeed zero)
• 443 994: indeed, 443 994 = 221 997 × 2
• 665 991: indeed, 665 991 = 221 997 × 3
• 887 988: indeed, 887 988 = 221 997 × 4
• 1 109 985: indeed, 1 109 985 = 221 997 × 5
• etc.

• Preceding numbers: …221 995, 221 996
• Following numbers: 221 998, 221 999…

Nearest numbers from 221 997

• Preceding prime number: 221 989
• Following prime number: 221 999

• Is 0 a prime number?
• Is 1 a prime number?
• Is 2 a prime number?
• Is 2024 a prime number?
• Is 2025 a prime number?
• Is 1335 a prime number?

• Five thousand prime numbers

• Contact

• 221 997 est-il un nombre premier ?