Is 2021 a prime number?

No, 2,021 is not a prime number. It is a composite number: 2,021 = 43 × 47.

Why 2,021 is not prime

2,021 has divisors other than 1 and itself. The smallest is 43: 2,021 ÷ 43 = 47.

Prime factorization: 2,021 = 43 × 47.

Quick facts about 2,021

Even or odd: odd.
Nearest primes: 2017 below and 2027 above.
Primes up to 2,021: 306.

Is it prime? Nearby numbers

Number	Prime?
2,001	No, 3 × 23 × 29
2,003	Yes
2,017	Yes
2,020	No, 2 × 2 × 5 × 101
2,023	No, 7 × 17 × 17
2,024	No, 2 × 2 × 2 × 11 × 23
2,025	No, 3 × 3 × 3 × 3 × 5 × 5
2,027	Yes

More about 2021: 2021 in Roman numerals.

Another number? Use the prime number checker for any value, or see the list of prime numbers.