Factors of 149
The factors of 149 are 1 and 149. Since 149 is a prime number, it has exactly 2 factors and cannot be divided evenly by any other whole number. The sum of its factors is 150, and its prime factorization is simply 149 itself.
All factors of 149
Here are all 2 factors of 149, listed from smallest to largest.
Factor pairs of 149
There is only one factor pair for 149, because it is prime.
Prime factorization of 149
149 is a prime number, so it cannot be broken down further. Its prime factorization is simply 149.
Properties of 149
| Number of factors | 2 |
|---|---|
| Sum of factors | 150 |
| Sum of proper factors | 1 |
| Prime factorization | 149 |
| Prime or composite? | Prime |
| Even or odd? | Odd |
| Perfect square? | No |
| Perfect cube? | No |
| Classification | Deficient |
What makes 149 interesting
- 149 is a prime number, so its only factors are 1 and 149. It cannot be split into a product of two smaller whole numbers.
- Every prime number is deficient — the sum of its proper factors is always 1, which is far less than the number itself.
How to find the factors of 149 yourself
Divide 149 by each whole number starting from 1. Whenever the division leaves no remainder, both the divisor and the quotient are factors. You only need to test up to √149 ≈ 12.21, because every factor above that pairs with one below it.
Reading both columns gives every factor: 1, 149. The factor calculator does this automatically for any number.
Related numbers
Numbers mathematically connected to 149.
Frequently asked questions about 149
What are the factors of 149?
Is 149 a prime number?
What is the prime factorization of 149?
What two numbers multiply to give 149?
What is the sum of the factors of 149?
Is 149 a perfect square?
What is the largest factor of 149 other than itself?
How many factors does 149 have?
Explore more
Try another number in the factor calculator, break 149 down further with the prime factorization calculator, or compare 149 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.