Is 721000 a prime number?

721 000 is an even number, because it is evenly divisible by 2: 721 000 / 2 = 360 500.

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 721 000 is about 849.117.

Thus, the square root of 721 000 is not an integer, and therefore 721 000 is not a square number.

The square of a number (here 721 000) is the result of the product of this number (721 000) by itself (i.e., 721 000 × 721 000); the square of 721 000 is sometimes called "raising 721 000 to the power 2", or "721 000 squared".

The square of 721 000 is 519 841 000 000 because 721 000 × 721 000 = 721 000² = 519 841 000 000.

As a consequence, 721 000 is the square root of 519 841 000 000.

721 000 is a number with 6 digits.

The multiples of 721 000 are all integers evenly divisible by 721 000, that is all numbers such that the remainder of the division by 721 000 is zero. There are infinitely many multiples of 721 000. The smallest multiples of 721 000 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 721 000 too, since 0 × 721 000 = 0
• 721 000: indeed, 721 000 is a multiple of itself, since 721 000 is evenly divisible by 721 000 (we have 721 000 / 721 000 = 1, so the remainder of this division is indeed zero)
• 1 442 000: indeed, 1 442 000 = 721 000 × 2
• 2 163 000: indeed, 2 163 000 = 721 000 × 3
• 2 884 000: indeed, 2 884 000 = 721 000 × 4
• 3 605 000: indeed, 3 605 000 = 721 000 × 5
• etc.

• Preceding numbers: …720 998, 720 999
• Following numbers: 721 001, 721 002…

Nearest numbers from 721 000

• Preceding prime number: 720 997
• Following prime number: 721 003