Factors of 143
The factors of 143 are whole numbers that divide it exactly without leaving a remainder. They appear in positive and negative pairs, like (1, 143) or (-1, -143), and are always integers, never fractions or decimals. You can find them using methods such as division or prime factorization. Learning about factors helps build a foundation for understanding divisibility, multiples, and prime numbers. In this guide, we'll explore the different types of factors of 143, including all positive factors, factor pairs, and the prime factorization of 143 with step-by-step explanations and examples.
What are the Factors of 143?
There are 4 factors of 143. The factors of 143 are 1, 11, 13 and 143. Factors can be negative. The negative factors are -1, -11, -13 and -143. All of these numbers divides 143 completely. 143 is a composite number because it has other factors besides 1 and 143.
Factors of 143: 1, 11, 13 and 143
Factor Pairs of 143
The factor pairs of 143 are the pairs of integers that multiply together to give 143. These include both positive and negative combinations. The positive factor pairs of 143 are (1, 143), (11, 13), and the negative factor pairs are (-1, -143), (-11, -13). Knowing the factor pairs of 143 is useful for learning multiplication, division, and understanding concepts such as the greatest common factor and prime factorization.
Positive Factor Pairs of 143:
| Factor 1 | Factor 2 |
|---|---|
| 1 | 143 |
| 11 | 13 |
Negative Factor Pairs of 143:
| Factor 1 | Factor 2 |
|---|---|
| -1 | -143 |
| -11 | -13 |
Prime Factorization of 143
The prime factorization of 143 involves breaking it down into the product of prime numbers. Using division, we find that the prime factors of 143 are 11, 13. Therefore, the prime factorization of 143 is 11 × 13. Understanding prime factorization helps in finding GCF, LCM, and simplifying fractions.
Prime factors of 143:
11, 13
Prime factorization of 143:
11 × 13
Compact form:
11 × 13
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How to Find the Factors of 143?
To find the factors of 143 using the division method efficiently, you only need to check numbers up to the square root of 143. For every number that divides 143 evenly, both it and its corresponding pair (143 ÷ that number) are factors.
Optimized steps to find factors of 143:
- •143 ÷ 1 = 143 → ✅ Factor Pair: (1, 143)
- •143 ÷ 11 = 13 → ✅ Factor Pair: (11, 13)
This method avoids unnecessary checks and gives all factor pairs quickly. It's especially useful for larger numbers.
Find factors and factors pair of any number with our Factor Checker tool.
Frequently Asked Questions about factors of 143
What are the factors of 143?
The factors of 143 are 1, 11, 13, 143.
What is the prime factorization of 143?
The prime factorization of 143 is 11 × 13.
How do I find the factors of 143?
To find the factors of 143, start by dividing 143 by every number from 1 up to the square root of 143.
What are factor pairs of 143?
The factor pairs of 143 are (1, 143), (-1, -143), (11, 13), (-11, -13).
How can I use the factors of 143?
The factors of 143 can be used to simplify fractions, find the greatest common divisor (GCD), and determine multiples.
Are the factors of 143 always positive?
Factors can be both positive and negative. For example, the negative factors of 143 are -1, -11, -13, -143.