GCF (HCF) of 49 and 121
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What is the Greatest Common Divisor of 49 and 121?
Answer
GCF (HCF) of 49 and 121 is
1
Common factors: 1
Only 1 divides both: 49 and 121 share no prime factor.
Such numbers are called coprime (relatively prime); their LCM is just the product: 49 × 121 = 5,929.
49 = 72
121 = 112
| Prime | 49 | 121 | Lowest power |
|---|---|---|---|
| 7 | 72 | — | — |
| 11 | — | 112 | — |
— = power 0: the prime is not a factor of this number, so it cannot be in the GCF.
GCF = 1
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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
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GCF Table
| Number 1 | Number 2 | GCF |
|---|---|---|
| 49 | 106 | 1 |
| 49 | 107 | 1 |
| 49 | 108 | 1 |
| 49 | 109 | 1 |
| 49 | 110 | 1 |
| 49 | 111 | 1 |
| 49 | 112 | 7 |
| 49 | 113 | 1 |
| 49 | 114 | 1 |
| 49 | 115 | 1 |
| 49 | 116 | 1 |
| 49 | 117 | 1 |
| 49 | 118 | 1 |
| 49 | 119 | 7 |
| 49 | 120 | 1 |
| 49 | 121 | 1 |
| 49 | 122 | 1 |
| 49 | 123 | 1 |
| 49 | 124 | 1 |
| 49 | 125 | 1 |
| 49 | 126 | 7 |
| 49 | 127 | 1 |
| 49 | 128 | 1 |
| 49 | 129 | 1 |
| 49 | 130 | 1 |
| 49 | 131 | 1 |
| 49 | 132 | 1 |
| 49 | 133 | 7 |
| 49 | 134 | 1 |
| 49 | 135 | 1 |