Factors of 158 are the list of integers that we can split evenly into 158. It has a total of 4 factors of which 158 is the biggest factor and the positive factors of 158 are 1, 2, 79, 158. The Prime Factors and Pair Factors of 158 are 2 × 79 and (1, 158), (2, 79) respectively.

• All Factors of 158: 1, 2, 79 and 158
• Negative Factors of 158: -1, -2, -79 and -158
• Prime Factors of 158: 2, 79
• Prime Factorization of 158: 2¹ × 79¹
• Sum of Factors of 158: 240

1.	What Are the Factors of 158?
2.	Factors of 158 by Prime Factorization
3.	Factors of 158 in Pairs
4.	FAQs on Factors of 158

Factors of 158 are pairs of those numbers whose products result in 158. These factors are either prime numbers or composite numbers.

How to Find the Factors of 158?

To find the factors of 158, we will have to find the list of numbers that would divide 158 without leaving any remainder.

• 158/2 = 79; therefore, 2 is a factor of 158 and 79 is also a factor of 158.
• 158/1 = 158; therefore, 1 is a factor of 158 and 158 is also a factor of 158.

Similarly we can find other factors. Hence, the factors of 158 are 1, 2, 79, 158.

☛ Also Check:

• Factors of 12 - The factors of 12 are 1, 2, 3, 4, 6, 12
• Factors of 108 - The factors of 108 are 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
• Factors of 27 - The factors of 27 are 1, 3, 9, 27
• Factors of 99 - The factors of 99 are 1, 3, 9, 11, 33, 99
• Factors of 70 - The factors of 70 are 1, 2, 5, 7, 10, 14, 35, 70

The number 158 is composite and therefore it will have prime factors. Now let us learn how to calculate the prime factors of 158. The first step is to divide the number 158 with the smallest prime factor, here it is 2. We keep dividing until it gives a non-zero remainder.

• 158 ÷ 2 = 79

Further dividing 79 by 2 gives a non-zero remainder. So we stop the process and continue dividing the number 79 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 158 can be written as 2¹ × 79¹ where 2, 79 are prime.

Pair factors of 158 are the pairs of numbers that when multiplied give the product 158. The factors of 158 in pairs are:

• 1 × 158 = (1, 158)
• 2 × 79 = (2, 79)

Negative pair factors of 158 are:

• -1 × -158 = (-1, -158)
• -2 × -79 = (-2, -79)

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