Is 779 a prime number?

Prime Number Checker
Number

Is 779 a prime or composite number?

Answer

Number 779 is not a Prime

779 = 19 × 41

779 has 4 divisors — 1, 19, 41 and 779; a prime has exactly two: 1 and itself.

Primes up to √779

27² = 729 ≤ 779 < 784 = 28², so it is enough to try primes up to 27

  • ÷2 does not divide
  • ÷3 does not divide
  • ÷5 does not divide
  • ÷7 does not divide
  • ÷11 does not divide
  • ÷13 does not divide
  • ÷17 does not divide
  • ÷19 divides

779 ÷ 19 = 41 — 19 divides 779, so 779 is composite

Nearest primes: 773 and 787

Related Calculations

See Also

Prime numbers list

NumberIs Prime
748No: 2² × 11 × 17
750No: 2 × 3 × 5³
751Yes
755No: 5 × 151
756No: 2² × 3³ × 7
757Yes
759No: 3 × 11 × 23
761Yes
767No: 13 × 59
769Yes
771No: 3 × 257
773Yes
775No: 5² × 31
776No: 2³ × 97
777No: 3 × 7 × 37
779No: 19 × 41
783No: 3³ × 29
785No: 5 × 157
787Yes
790No: 2 × 5 × 79
791No: 7 × 113
795No: 3 × 5 × 53
797Yes
801No: 3² × 89
803No: 11 × 73
809Yes
811Yes
812No: 2² × 7 × 29
813No: 3 × 271
817No: 19 × 43

FAQ

Is 779 a prime or composite number?

Number 779 is not a Prime

How many factors are in a number 779?

4

How to check if 779 is prime?

Divide 779 by the primes in order: 27² = 729 ≤ 779 < 784 = 28², so it is enough to try primes up to 27. The first one that divides it is 19: 779 ÷ 19 = 41, so 779 is composite.

See Also