GCF for 10, 25 and 56
"Greatest Common Factor of 3 Numbers" Calculator
What's the Greatest Common Factor (GCF) of 10, 25 and 56?
Answer
GCF of 10, 25 and 56 is
1
Common factors: 1
Only 1 divides all three: no prime is a factor of each of 10, 25 and 56.
Pairs do share factors — GCF(10, 25) = 5, GCF(10, 56) = 2 — just none greater than 1 common to all three.
10 = 2 × 5
25 = 52
56 = 23 × 7
| Prime | 10 | 25 | 56 | Lowest power |
|---|---|---|---|---|
| 2 | 2 | — | 23 | — |
| 5 | 5 | 52 | — | — |
| 7 | — | — | 7 | — |
— = 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 of 3 Numbers - Find the Least Common Multiple (LCM) of three numbers
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
- Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers
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GCF Table
| 1st | 2nd | 3rd | GCF |
|---|---|---|---|
| 10 | 25 | 41 | 1 |
| 10 | 25 | 42 | 1 |
| 10 | 25 | 43 | 1 |
| 10 | 25 | 44 | 1 |
| 10 | 25 | 45 | 5 |
| 10 | 25 | 46 | 1 |
| 10 | 25 | 47 | 1 |
| 10 | 25 | 48 | 1 |
| 10 | 25 | 49 | 1 |
| 10 | 25 | 50 | 5 |
| 10 | 25 | 51 | 1 |
| 10 | 25 | 52 | 1 |
| 10 | 25 | 53 | 1 |
| 10 | 25 | 54 | 1 |
| 10 | 25 | 55 | 5 |
| 10 | 25 | 56 | 1 |
| 10 | 25 | 57 | 1 |
| 10 | 25 | 58 | 1 |
| 10 | 25 | 59 | 1 |
| 10 | 25 | 60 | 5 |
| 10 | 25 | 61 | 1 |
| 10 | 25 | 62 | 1 |
| 10 | 25 | 63 | 1 |
| 10 | 25 | 64 | 1 |
| 10 | 25 | 65 | 5 |
| 10 | 25 | 66 | 1 |
| 10 | 25 | 67 | 1 |
| 10 | 25 | 68 | 1 |
| 10 | 25 | 69 | 1 |
| 10 | 25 | 70 | 5 |