Is 1025 a prime number?

Prime Number Checker
Number

Is 1,025 a prime or composite number?

Answer

Number 1,025 is not a Prime

1,025 = 5² × 41

1,025 has 6 divisors — 1, 5, 25, 41, 205 and 1,025; a prime has exactly two: 1 and itself.

Primes up to √1,025

32² = 1,024 ≤ 1,025 < 1,089 = 33², so it is enough to try primes up to 32

  • ÷2 does not divide
  • ÷3 does not divide
  • ÷5 divides

1,025 ÷ 5 = 205 — 5 divides 1,025, so 1,025 is composite

Nearest primes: 1,021 and 1,031

Related Calculations

See Also

Prime numbers list

NumberIs Prime
988No: 2² × 13 × 19
989No: 23 × 43
990No: 2 × 3² × 5 × 11
991Yes
993No: 3 × 331
994No: 2 × 7 × 71
996No: 2² × 3 × 83
997Yes
999No: 3³ × 37
1,000No: 2³ × 5³
1,001No: 7 × 11 × 13
1,005No: 3 × 5 × 67
1,010No: 2 × 5 × 101
1,015No: 5 × 7 × 29
1,020No: 2² × 3 × 5 × 17
1,025No: 5² × 41
1,050No: 2 × 3 × 5² × 7
1,051Yes
1,085No: 5 × 7 × 31
1,100No: 2² × 5² × 11
1,111No: 11 × 101
1,140No: 2² × 3 × 5 × 19
1,160No: 2³ × 5 × 29
1,175No: 5² × 47
1,185No: 3 × 5 × 79
1,190No: 2 × 5 × 7 × 17
1,195No: 5 × 239
1,210No: 2 × 5 × 11²
1,215No: 3⁵ × 5
1,220No: 2² × 5 × 61

FAQ

Is 1,025 a prime or composite number?

Number 1,025 is not a Prime

How many factors are in a number 1,025?

6

How to check if 1,025 is prime?

Divide 1,025 by the primes in order: 32² = 1,024 ≤ 1,025 < 1,089 = 33², so it is enough to try primes up to 32. The first one that divides it is 5: 1,025 ÷ 5 = 205, so 1,025 is composite.

See Also