Is 221801 a prime number?

221 801 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 221 801 is about 470.958.

Thus, the square root of 221 801 is not an integer, and therefore 221 801 is not a square number.

The square of a number (here 221 801) is the result of the product of this number (221 801) by itself (i.e., 221 801 × 221 801); the square of 221 801 is sometimes called "raising 221 801 to the power 2", or "221 801 squared".

The square of 221 801 is 49 195 683 601 because 221 801 × 221 801 = 221 801² = 49 195 683 601.

As a consequence, 221 801 is the square root of 49 195 683 601.

221 801 is a number with 6 digits.

The multiples of 221 801 are all integers evenly divisible by 221 801, that is all numbers such that the remainder of the division by 221 801 is zero. There are infinitely many multiples of 221 801. The smallest multiples of 221 801 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 221 801 too, since 0 × 221 801 = 0
• 221 801: indeed, 221 801 is a multiple of itself, since 221 801 is evenly divisible by 221 801 (we have 221 801 / 221 801 = 1, so the remainder of this division is indeed zero)
• 443 602: indeed, 443 602 = 221 801 × 2
• 665 403: indeed, 665 403 = 221 801 × 3
• 887 204: indeed, 887 204 = 221 801 × 4
• 1 109 005: indeed, 1 109 005 = 221 801 × 5
• etc.

• Preceding numbers: …221 799, 221 800
• Following numbers: 221 802, 221 803…

Nearest numbers from 221 801

• Preceding prime number: 221 797
• Following prime number: 221 807

• Is 0 a prime number?
• Is 1 a prime number?
• Is 2 a prime number?
• Is 2025 a prime number?
• Is 2026 a prime number?
• Is 3326 a prime number?

• Five thousand prime numbers

• Contact

• 221 801 est-il un nombre premier ?