The factors of 98 are the whole numbers that divide 98 exactly, leaving no remainder: 1, 2, 7, 14, 49, 98. Use the calculator above for any number, or read on for the factor pairs, prime factorization and properties of 98.
What are the factors of 98?
A factor of 98 is any whole number that divides 98 with no remainder. Listing them from smallest to largest, the factors of 98 are:
1, 2, 7, 14, 49, 98
So 98 is a composite number with 6 factors in total. Every number has 1 and itself as factors; the interesting work is finding the ones in between.
Factor pairs of 98
A factor pair is two numbers that multiply to give 98. The factor pairs of 98 are:
| Factor pair | Product |
|---|---|
| 1 × 98 | 98 |
| 2 × 49 | 98 |
| 7 × 14 | 98 |
Prime factorization of 98
The prime factorization breaks 98 down into a product of prime numbers only:
$$ 98 = 2 \times 7^{2} $$How to find the factors of 98, step by step
- Start at 1 — 1 divides every number, so 1 and 98 are always factors.
- Test each whole number from 2 upward: if it divides 98 exactly, it is a factor.
- Use factor pairs — each small factor gives a matching large factor, so you only need to test up to $\sqrt{98}$.
- List them in order to get all 6 factors of 98.
Factors versus multiples of 98
It is easy to mix these up. The factors of 98 are the numbers that divide into 98 (they are less than or equal to 98), while the multiples of 98 are what you get by multiplying 98 outward: 98, 196, 294, 392, and so on. In short: factors go in, multiples go out. 98 is an even number, and its smallest prime factor is 2.
Properties of 98
| Number of factors | 6 |
| Sum of factors | 171 |
| Sum of proper divisors | 73 |
| Prime or composite | Composite |
| Even or odd | Even |
| Perfect square | No |
| Prime factorization | 2 x 7^2 |
Is 98 abundant, deficient or perfect?
Number theorists classify a number by comparing it to the sum of its proper divisors (all its factors except itself). For 98, those proper divisors add up to 73, which makes 98 a deficient number (its proper divisors sum to 73, which is less than 98). Most numbers are deficient; abundant and perfect numbers are comparatively rare, which is what makes this property interesting.
Using the factors of 98 for GCF and LCM
The prime factorization $2 \times 7^{2}$ is the shortcut for combining 98 with another number. To find the greatest common factor (GCF), take the primes 98 shares with the other number, each to the lowest power. For the least common multiple (LCM), take every prime that appears in either number, each to the highest power. This is why the prime factorization is worth writing down — it does the heavy lifting for fractions, ratios and simplification.
Related factors and tools
Explore more: Factors of 96 Factors of 100 Factors of 90. Or find the factors of any number with the Factor Calculator. Exponents are the reverse idea — see logarithms and read the formal reference on divisors at Wikipedia.