Factors of 621 are the list of integers that can be evenly divided into 621. It has a total of 8 factors of which 621 is the biggest factor and the positive factors of 621 are 1, 3, 9, 23, 27, 69, 207, 621. The Prime Factors of 621 are 3 × 23 and its Factors in Pairs are (1, 621), (3, 207), (9, 69), (23, 27).

• All Factors of 621: 1, 3, 9, 23, 27, 69, 207 and 621
• Negative Factors of 621: -1, -3, -9, -23, -27, -69, -207 and -621
• Prime Factors of 621: 3, 23
• Prime Factorization of 621: 3³ × 23¹
• Sum of Factors of 621: 960

1.	What Are the Factors of 621?
2.	Factors of 621 by Prime Factorization
3.	Factors of 621 in Pairs
4.	FAQs on Factors of 621

Factors of 621 are pairs of those numbers whose products result in 621. These factors are either prime numbers or composite numbers.

How to Find the Factors of 621?

To find the factors of 621, we will have to find the list of numbers that would divide 621 without leaving any remainder.

• 621/3 = 207; therefore, 3 is a factor of 621 and 207 is also a factor of 621.
• 621/69 = 9; therefore, 69 is a factor of 621 and 9 is also a factor of 621.

Similarly we can find other factors. Hence, the factors of 621 are 1, 3, 9, 23, 27, 69, 207, 621.

☛ Also Check:

• Factors of 8 - The factors of 8 are 1, 2, 4, 8
• Factors of 99 - The factors of 99 are 1, 3, 9, 11, 33, 99
• Factors of 35 - The factors of 35 are 1, 5, 7, 35
• Factors of 100 - The factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, 100
• Factors of 42 - The factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42

The number 621 is composite and therefore it will have prime factors. Now let us learn how to calculate the prime factors of 621. The first step is to divide the number 621 with the smallest prime factor, here it is 3. We keep dividing until it gives a non-zero remainder.

• 621 ÷ 3 = 207
• 207 ÷ 3 = 69
• 69 ÷ 3 = 23

Further dividing 23 by 3 gives a non-zero remainder. So we stop the process and continue dividing the number 23 by the next smallest prime factor. We stop ultimately if the next prime factor doesn't exist or when we can't divide any further.

So, the prime factorization of 621 can be written as 3³ × 23¹ where 3, 23 are prime.

Pair factors of 621 are the pairs of numbers that when multiplied give the product 621. The factors of 621 in pairs are:

• 1 × 621 = (1, 621)
• 3 × 207 = (3, 207)
• 9 × 69 = (9, 69)
• 23 × 27 = (23, 27)

Negative pair factors of 621 are:

• -1 × -621 = (-1, -621)
• -3 × -207 = (-3, -207)
• -9 × -69 = (-9, -69)
• -23 × -27 = (-23, -27)

NOTE: If (a, b) is a pair factor of a number then (b, a) is also a pair factor of that number.