Factors of 133 are numbers that, when multiplied in pairs give the product as 133. There are 4 factors of 133 of which 133 itself is the biggest factor and its positive factors are 1, 7, 19, 133. The Pair Factors of 133 are (1, 133), (7, 19) and its Prime Factors are 7 × 19.

• All Factors of 133: 1, 7, 19 and 133
• Negative Factors of 133: -1, -7, -19 and -133
• Prime Factors of 133: 7, 19
• Prime Factorization of 133: 7¹ × 19¹
• Sum of Factors of 133: 160

1.	What Are the Factors of 133?
2.	Factors of 133 by Prime Factorization
3.	Factors of 133 in Pairs
4.	FAQs on Factors of 133

Factors of 133 are pairs of those numbers whose products result in 133. These factors are either prime numbers or composite numbers.

How to Find the Factors of 133?

To find the factors of 133, we will have to find the list of numbers that would divide 133 without leaving any remainder.

• 133/7 = 19; therefore, 7 is a factor of 133 and 19 is also a factor of 133.
• 133/1 = 133; therefore, 1 is a factor of 133 and 133 is also a factor of 133.

Similarly we can find other factors. Hence, the factors of 133 are 1, 7, 19, 133.

☛ Also Check:

• Factors of 13 - The factors of 13 are 1, 13
• Factors of 30 - The factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30
• Factors of 49 - The factors of 49 are 1, 7, 49
• Factors of 39 - The factors of 39 are 1, 3, 13, 39
• Factors of 32 - The factors of 32 are 1, 2, 4, 8, 16, 32

The number 133 is composite and therefore it will have prime factors. Now let us learn how to calculate the prime factors of 133. The first step is to divide the number 133 with the smallest prime factor, here it is 7. We keep dividing until it gives a non-zero remainder.

• 133 ÷ 7 = 19

Further dividing 19 by 7 gives a non-zero remainder. So we stop the process and continue dividing the number 19 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 133 can be written as 7¹ × 19¹ where 7, 19 are prime.

Pair factors of 133 are the pairs of numbers that when multiplied give the product 133. The factors of 133 in pairs are:

• 1 × 133 = (1, 133)
• 7 × 19 = (7, 19)

Negative pair factors of 133 are:

• -1 × -133 = (-1, -133)
• -7 × -19 = (-7, -19)

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