Is 802 a prime number? What are the divisors of 802?

Parity of 802

802 is an even number, because it is evenly divisible by 2: 802 / 2 = 401.

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Is 802 a perfect square 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 802 is about 28.320.

Thus, the square root of 802 is not an integer, and therefore 802 is not a square number.

What is the square number of 802?

The square of a number (here 802) is the result of the product of this number (802) by itself (i.e., 802 × 802); the square of 802 is sometimes called "raising 802 to the power 2", or "802 squared".

The square of 802 is 643 204 because 802 × 802 = 8022 = 643 204.

As a consequence, 802 is the square root of 643 204.

Number of digits of 802

802 is a number with 3 digits.

What are the multiples of 802?

The multiples of 802 are all integers evenly divisible by 802, that is all numbers such that the remainder of the division by 802 is zero. There are infinitely many multiples of 802. The smallest multiples of 802 are:

How to determine whether an integer is a prime number?

To determine the primality of a number, several algorithms can be used. The most naive technique is to test all divisors strictly smaller to the number of which we want to determine the primality (here 802). First, we can eliminate all even numbers greater than 2 (and hence 4, 6, 8…). Then, we can stop this check when we reach the square root of the number of which we want to determine the primality (here the square root is about 28.320). Historically, the sieve of Eratosthenes (dating from the Greek mathematics) implements this technique in a relatively efficient manner.

More modern techniques include the sieve of Atkin, probabilistic algorithms, and the cyclotomic AKS test.

Numbers near 802

  • Preceding numbers: …800, 801
  • Following numbers: 803, 804

Nearest numbers from 802

  • Preceding prime number: 797
  • Following prime number: 809
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