Factors of 628 are integers that can be divided evenly into 628. There are total 6 factors of 628 i.e. 1, 2, 4, 157, 314, 628. The Prime Factors of 628 are 2 × 157 and its Factors in Pairs are (1, 628), (2, 314), (4, 157).

• All Factors of 628: 1, 2, 4, 157, 314 and 628
• Negative Factors of 628: -1, -2, -4, -157, -314 and -628
• Prime Factors of 628: 2, 157
• Prime Factorization of 628: 2² × 157¹
• Sum of Factors of 628: 1106

1.	What Are the Factors of 628?
2.	Factors of 628 by Prime Factorization
3.	Factors of 628 in Pairs
4.	FAQs on Factors of 628

Factors of 628 are pairs of those numbers whose products result in 628. These factors are either prime numbers or composite numbers.

How to Find the Factors of 628?

To find the factors of 628, we will have to find the list of numbers that would divide 628 without leaving any remainder.

• 628/4 = 157; therefore, 4 is a factor of 628 and 157 is also a factor of 628.
• 628/314 = 2; therefore, 314 is a factor of 628 and 2 is also a factor of 628.

Similarly we can find other factors. Hence, the factors of 628 are 1, 2, 4, 157, 314, 628.

☛ Also Check:

• Factors of 84 - The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
• Factors of 144 - The factors of 144 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
• Factors of 5 - The factors of 5 are 1, 5
• Factors of 48 - The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
• Factors of 54 - The factors of 54 are 1, 2, 3, 6, 9, 18, 27, 54

The number 628 is composite and therefore it will have prime factors. Now let us learn how to calculate the prime factors of 628. The first step is to divide the number 628 with the smallest prime factor, here it is 2. We keep dividing until it gives a non-zero remainder.

• 628 ÷ 2 = 314
• 314 ÷ 2 = 157

Further dividing 157 by 2 gives a non-zero remainder. So we stop the process and continue dividing the number 157 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 628 can be written as 2² × 157¹ where 2, 157 are prime.

Pair factors of 628 are the pairs of numbers that when multiplied give the product 628. The factors of 628 in pairs are:

• 1 × 628 = (1, 628)
• 2 × 314 = (2, 314)
• 4 × 157 = (4, 157)

Negative pair factors of 628 are:

• -1 × -628 = (-1, -628)
• -2 × -314 = (-2, -314)
• -4 × -157 = (-4, -157)

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