Factors of 802

802 has 4 factors: 1, 2, 401 and 802. Its prime factorization is 2 × 401.

Factor pairs of 802

Factor×FactorProduct
1×802802
2×401802

Negative pairs work too: (−1) × (−802), (−2) × (−401) = 802.

Number of factors
4
Factor pairs
2
Sum of factors
1,206
Prime or composite
Composite
Even or odd
Even
Perfect square
No
Prime factorization 2 × 401

How to find the factors of 802

Test every whole number from 1 up to the square root of 802 (√802 ≈ 28.320). Each number that divides evenly gives you two factors at once: the divisor and the quotient.

  • 802 ÷ 1 = 802 — so 1 and 802 are factors
  • 802 ÷ 2 = 401 — so 2 and 401 are factors
  • 802 ÷ 3 = 267.333 — not a whole number
  • 802 ÷ 4 = 200.5 — not a whole number
  • 802 ÷ 5 = 160.4 — not a whole number
  • 802 ÷ 6 = 133.667 — not a whole number
  • 802 ÷ 7 = 114.571 — not a whole number
  • 802 ÷ 8 = 100.25 — not a whole number
  • 802 ÷ 9 = 89.111 — not a whole number
  • 802 ÷ 10 = 80.2 — not a whole number
  • 802 ÷ 11 = 72.909 — not a whole number
  • 802 ÷ 12 = 66.833 — not a whole number
  • 802 ÷ 13 = 61.692 — not a whole number
  • 802 ÷ 14 = 57.286 — not a whole number
  • 802 ÷ 15 = 53.467 — not a whole number
  • 802 ÷ 16 = 50.125 — not a whole number
  • 802 ÷ 17 = 47.176 — not a whole number
  • 802 ÷ 18 = 44.556 — not a whole number
  • 802 ÷ 19 = 42.211 — not a whole number
  • 802 ÷ 20 = 40.1 — not a whole number
  • 802 ÷ 21 = 38.19 — not a whole number
  • 802 ÷ 22 = 36.455 — not a whole number
  • 802 ÷ 23 = 34.87 — not a whole number
  • 802 ÷ 24 = 33.417 — not a whole number
  • 802 ÷ 25 = 32.08 — not a whole number
  • 802 ÷ 26 = 30.846 — not a whole number
  • 802 ÷ 27 = 29.704 — not a whole number
  • 802 ÷ 28 = 28.643 — not a whole number

Collecting both numbers from every successful division gives the complete list: 1, 2, 401 and 802.

Prime factorization of 802

Divide by the smallest prime that fits, and keep going until the quotient is 1:

802 ÷ 2 = 401
401 ÷ 401 = 1

The primes you divided by give 802 = 2 × 401. From the exponents you can also count the factors without listing them: (1 + 1) × (1 + 1) = 4.

Properties of 802

  • 802 is a composite number.
  • The sum of all its factors is 1,206; the sum of its proper factors (excluding 802) is 404, which makes it a deficient number (its proper factors add up to less than itself).
  • 802 is not a perfect square, so its factors pair up evenly.
  • Multiples of 802 include 1,604, 2,406, 3,208, 4,010 and so on.

Factors vs. multiples

Factors of 802 are the numbers that divide into it; multiples of 802 are the numbers it divides into. Every number has a limited set of factors but infinitely many multiples. To work with any other number, use the factors calculator, or find shared factors with the GCF calculator.

Frequently asked questions

What are the factors of 802?

The factors of 802 are 1, 2, 401 and 802. Each of these divides 802 with no remainder.

How many factors does 802 have?

802 has 4 positive factors, which form 2 factor pairs. Counting negative factors as well doubles that to 8.

What is the prime factorization of 802?

802 = 2 × 401. Its distinct prime factors are 2 and 401.

Is 802 a prime number?

No. 802 is composite because it has 4 factors, more than the two a prime number has.