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    Is 439 a prime number?

    Prime Number Checker
    Number

    Is 439 a prime or composite number?

    Answer

    Number 439 is a Prime

    439 has exactly two divisors — 1 and 439 — so it is a prime.

    Primes up to √439

    20² = 400 ≤ 439 < 441 = 21², so it is enough to try primes up to 20

    • ÷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 does not divide

    none of the 8 primes up to 20 divides 439 — 439 is prime

    Nearest primes: 433 and 443

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    Is 439 a prime number? Is 439 a prime number? 439 is a prime number. Check if any number is prime or composite with our free online prime checker.
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    Prime numbers list

    NumberIs Prime
    419Yes
    420No: 2² × 3 × 5 × 7
    421Yes
    423No: 3² × 47
    424No: 2³ × 53
    425No: 5² × 17
    428No: 2² × 107
    429No: 3 × 11 × 13
    431Yes
    432No: 2⁴ × 3³
    433Yes
    434No: 2 × 7 × 31
    436No: 2² × 109
    437No: 19 × 23
    438No: 2 × 3 × 73
    439Yes
    441No: 3² × 7²
    443Yes
    447No: 3 × 149
    448No: 2⁶ × 7
    449Yes
    450No: 2 × 3² × 5²
    451No: 11 × 41
    453No: 3 × 151
    455No: 5 × 7 × 13
    457Yes
    458No: 2 × 229
    459No: 3³ × 17
    461Yes
    462No: 2 × 3 × 7 × 11

    FAQ

    Is 439 a prime or composite number?

    Number 439 is a Prime

    How many factors are in a number 439?

    2

    How to check if 439 is prime?

    Divide 439 by the primes in order: 20² = 400 ≤ 439 < 441 = 21², so it is enough to try primes up to 20. None of the 8 primes up to 20 divides 439, so 439 is prime.

    See Also