Factors of 6561 are integers that can be divided evenly into 6561. There are overall 9 factors of 6561 among which 6561 is the biggest factor and 1, 3, 9, 27, 81, 243, 729, 2187, 6561 are positive factors. The Prime Factors and Pair Factors of 6561 are 3 and (1, 6561), (3, 2187), (9, 729), (27, 243), (81, 81) respectively.

• All Factors of 6561: 1, 3, 9, 27, 81, 243, 729, 2187 and 6561
• Negative Factors of 6561: -1, -3, -9, -27, -81, -243, -729, -2187 and -6561
• Prime Factors of 6561: 3
• Prime Factorization of 6561: 3⁸
• Sum of Factors of 6561: 9841

1.	What Are the Factors of 6561?
2.	Factors of 6561 by Prime Factorization
3.	Factors of 6561 in Pairs
4.	FAQs on Factors of 6561

Factors of 6561 are pairs of those numbers whose products result in 6561. These factors are either prime numbers or composite numbers.

How to Find the Factors of 6561?

To find the factors of 6561, we will have to find the list of numbers that would divide 6561 without leaving any remainder.

• 6561/243 = 27; therefore, 243 is a factor of 6561 and 27 is also a factor of 6561.
• 6561/729 = 9; therefore, 729 is a factor of 6561 and 9 is also a factor of 6561.

Similarly we can find other factors. Hence, the factors of 6561 are 1, 3, 9, 27, 81, 243, 729, 2187, 6561.

☛ Also Check:

• Factors of 26 - The factors of 26 are 1, 2, 13, 26
• Factors of 4 - The factors of 4 are 1, 2, 4
• Factors of 65 - The factors of 65 are 1, 5, 13, 65
• Factors of 41 - The factors of 41 are 1, 41
• Factors of 32 - The factors of 32 are 1, 2, 4, 8, 16, 32

The number 6561 is composite and therefore it will have prime factors. Now let us learn how to calculate the prime factors of 6561. The first step is to divide the number 6561 with the smallest prime factor, here it is 3. We keep dividing until it gives a non-zero remainder.

• 6561 ÷ 3 = 2187
• 2187 ÷ 3 = 729
• 729 ÷ 3 = 243
• 243 ÷ 3 = 81
• 81 ÷ 3 = 27
• 27 ÷ 3 = 9
• 9 ÷ 3 = 3
• 3 ÷ 3 = 1

Further dividing 1 by 3 gives a non-zero remainder. So we stop the process and continue dividing the number 1 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.

Since, we can't divide any further in this case so we stop.

So, the prime factorization of 6561 is 3⁸.

Pair factors of 6561 are the pairs of numbers that when multiplied give the product 6561. The factors of 6561 in pairs are:

• 1 × 6561 = (1, 6561)
• 3 × 2187 = (3, 2187)
• 9 × 729 = (9, 729)
• 27 × 243 = (27, 243)
• 81 × 81 = (81, 81)

Negative pair factors of 6561 are:

• -1 × -6561 = (-1, -6561)
• -3 × -2187 = (-3, -2187)
• -9 × -729 = (-9, -729)
• -27 × -243 = (-27, -243)
• -81 × -81 = (-81, -81)

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