GCF (HCF) of 5 and 18
"Greatest Common Factor" Calculator
What is the Greatest Common Divisor of 5 and 18?
Answer
GCF (HCF) of 5 and 18 is
1
Common factors: 1
Only 1 divides both: 5 and 18 share no prime factor.
Such numbers are called coprime (relatively prime); their LCM is just the product: 5 × 18 = 90.
5 — prime
18 = 2 × 32
| Prime | 5 | 18 | Lowest power |
|---|---|---|---|
| 2 | — | 2 | — |
| 3 | — | 32 | — |
| 5 | 5 | — | — |
— = power 0: the prime is not a factor of this number, so it cannot be in the GCF.
GCF = 1
More with these numbers
Found an error in the calculation or the information?
Related Calculations
See Also
- Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers
- Greatest Common Factor of 3 Numbers - Find the Greatest Common Factor (GCF) of three numbers
- Least Common Multiple of 3 Numbers - Find the Least Common Multiple (LCM) of three numbers
Share This Calculation
Print
<a href="https://calculat.io/en/number/greatest-common-factor-of/5--18">What is the GCF (HCF) of 5 and 18 - Calculatio</a>Facebook
Twitter
Telegram
WhatsApp
Viber
Email
