Factors of 1220 are the list of integers that we can split evenly into 1220. It has total 12 factors of which 1220 is the biggest factor and the prime factors of 1220 are 2, 5, 61. The sum of all factors of 1220 is 2604.

• All Factors of 1220: 1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610 and 1220
• Prime Factors of 1220: 2, 5, 61
• Prime Factorization of 1220: 2² × 5¹ × 61¹
• Sum of Factors of 1220: 2604

1.	What Are the Factors of 1220?
2.	Factors of 1220 by Prime Factorization
3.	Factors of 1220 in Pairs
4.	FAQs on Factors of 1220

Factors of 1220 are pairs of those numbers whose products result in 1220. These factors are either prime numbers or composite numbers.

How to Find the Factors of 1220?

To find the factors of 1220, we will have to find the list of numbers that would divide 1220 without leaving any remainder.

• 1220/61 = 20; therefore, 61 is a factor of 1220 and 20 is also a factor of 1220.
• 1220/122 = 10; therefore, 122 is a factor of 1220 and 10 is also a factor of 1220.

Similarly we can find other factors. Hence, the factors of 1220 are 1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220.

☛ Also Check:

• Factors of 99 - The factors of 99 are 1, 3, 9, 11, 33, 99
• Factors of 75 - The factors of 75 are 1, 3, 5, 15, 25, 75
• Factors of 48 - The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
• Factors of 56 - The factors of 56 are 1, 2, 4, 7, 8, 14, 28, 56
• Factors of 54 - The factors of 54 are 1, 2, 3, 6, 9, 18, 27, 54

The number 1220 is composite and therefore it will have prime factors. Now let us learn how to calculate the prime factors of 1220. The first step is to divide the number 1220 with the smallest prime factor, here it is 2. We keep dividing until it gives a non-zero remainder.

• 1220 ÷ 2 = 610
• 610 ÷ 2 = 305

Further dividing 305 by 2 gives a non-zero remainder. So we stop the process and continue dividing the number 305 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 1220 can be written as 2² × 5¹ × 61¹ where 2, 5, 61 are prime.

Pair factors of 1220 are the pairs of numbers that when multiplied give the product 1220. The factors of 1220 in pairs are:

• 1 × 1220 = (1, 1220)
• 2 × 610 = (2, 610)
• 4 × 305 = (4, 305)
• 5 × 244 = (5, 244)
• 10 × 122 = (10, 122)
• 20 × 61 = (20, 61)

Negative pair factors of 1220 are:

• -1 × -1220 = (-1, -1220)
• -2 × -610 = (-2, -610)
• -4 × -305 = (-4, -305)
• -5 × -244 = (-5, -244)
• -10 × -122 = (-10, -122)
• -20 × -61 = (-20, -61)

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