Factors of 771
The factors of 771 are 1, 3, 257, and 771. In total, 771 has 4 factors. Its prime factorization is 3 × 257, and the sum of all its factors is 1032.
All factors of 771
Here are all 4 factors of 771, listed from smallest to largest.
Factor pairs of 771
These 2 pairs of whole numbers each multiply to give 771.
Prime factorization of 771
Dividing 771 by the smallest prime at each step gives its prime factorization:
The distinct prime factors of 771 are 3, 257. To factorize any other number, use the prime factorization calculator.
Factor tree of 771
A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.
Properties of 771
| Number of factors | 4 |
|---|---|
| Sum of factors | 1032 |
| Sum of proper factors | 261 |
| Prime factorization | 3 × 257 |
| Prime or composite? | Composite |
| Even or odd? | Odd |
| Perfect square? | No |
| Perfect cube? | No |
| Classification | Deficient |
What makes 771 interesting
- 771 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 2 different ways.
- 771 is a deficient number: its proper factors sum to 261, which is 510 less than 771 itself.
How to find the factors of 771 yourself
Divide 771 by each whole number starting from 1. Whenever the division leaves no remainder, both the divisor and the quotient are factors. You only need to test up to √771 ≈ 27.77, because every factor above that pairs with one below it.
Reading both columns gives every factor: 1, 3, 257, 771. The factor calculator does this automatically for any number.
Related numbers
Numbers mathematically connected to 771.
Frequently asked questions about 771
What are the factors of 771?
Is 771 a prime number?
What is the prime factorization of 771?
What two numbers multiply to give 771?
What is the sum of the factors of 771?
Is 771 a perfect square?
What is the largest factor of 771 other than itself?
How many factors does 771 have?
Explore more
Try another number in the factor calculator, break 771 down further with the prime factorization calculator, or compare 771 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.