Factors of 686 are the list of integers that we can split evenly into 686. There are overall 8 factors of 686 i.e. 1, 2, 7, 14, 49, 98, 343, 686 where 686 is the biggest factor. The sum of all factors of 686 is 1200 and its factors in Pairs are (1, 686), (2, 343), (7, 98), (14, 49).

• All Factors of 686: 1, 2, 7, 14, 49, 98, 343 and 686
• Negative Factors of 686: -1, -2, -7, -14, -49, -98, -343 and -686
• Prime Factors of 686: 2, 7
• Prime Factorization of 686: 2¹ × 7³
• Sum of Factors of 686: 1200

1.	What Are the Factors of 686?
2.	Factors of 686 by Prime Factorization
3.	Factors of 686 in Pairs
4.	FAQs on Factors of 686

Factors of 686 are pairs of those numbers whose products result in 686. These factors are either prime numbers or composite numbers.

How to Find the Factors of 686?

To find the factors of 686, we will have to find the list of numbers that would divide 686 without leaving any remainder.

• 686/98 = 7; therefore, 98 is a factor of 686 and 7 is also a factor of 686.
• 686/14 = 49; therefore, 14 is a factor of 686 and 49 is also a factor of 686.

Similarly we can find other factors. Hence, the factors of 686 are 1, 2, 7, 14, 49, 98, 343, 686.

☛ Also Check:

• Factors of 37 - The factors of 37 are 1, 37
• Factors of 20 - The factors of 20 are 1, 2, 4, 5, 10, 20
• Factors of 11 - The factors of 11 are 1, 11
• Factors of 50 - The factors of 50 are 1, 2, 5, 10, 25, 50
• Factors of 33 - The factors of 33 are 1, 3, 11, 33

The number 686 is composite and therefore it will have prime factors. Now let us learn how to calculate the prime factors of 686. The first step is to divide the number 686 with the smallest prime factor, here it is 2. We keep dividing until it gives a non-zero remainder.

• 686 ÷ 2 = 343

Further dividing 343 by 2 gives a non-zero remainder. So we stop the process and continue dividing the number 343 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 686 can be written as 2¹ × 7³ where 2, 7 are prime.

Pair factors of 686 are the pairs of numbers that when multiplied give the product 686. The factors of 686 in pairs are:

• 1 × 686 = (1, 686)
• 2 × 343 = (2, 343)
• 7 × 98 = (7, 98)
• 14 × 49 = (14, 49)

Negative pair factors of 686 are:

• -1 × -686 = (-1, -686)
• -2 × -343 = (-2, -343)
• -7 × -98 = (-7, -98)
• -14 × -49 = (-14, -49)

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