Five of a Kind Serial Number
By Muhammad Khalid Hussain; published ; updated
A Five of a Kind serial contains one digit exactly five times in its eight positions, such as 77777299. Banknote Expert checks the full string for overlaps.
Enter your bill’s 8-digit serial number above to see its rarity score, any matched patterns and an estimated value range. Nothing is uploaded. The check runs entirely in your browser.

What is a five of a kind serial number?
A Five of a Kind serial has one digit appearing exactly five times among its eight digits. The other three positions can contain repeats or different digits. For example, 77777299 contains five 7s.
Five vs six vs seven of a kind
Five, Six and Seven of a Kind count how many times the most frequent digit appears. Five is the most common of these three. Five in a Row adds a consecutive-position condition, such as five matching digits at the start or end; scattered groups still count as Five of a Kind. Compound forms can also pair five repeated digits with a triple, pair, bookends, trinary or binary structure. A combination can be checked as a separate pattern, but the Five of a Kind label alone is modest evidence.
| Pattern | Rule | Example |
|---|---|---|
| Five of a Kind | One digit appears exactly five times | 77777299 |
| Six of a Kind | Six matching digits plus two distinct others | 66666678 |
| Seven of a Kind | Seven matching digits | 55505555 |
| Five in a Row | Five matching digits are consecutive | 77777012 |
| Binary five | Five repeated digits and one other digit | 55555111 |
Five of a Kind examples and non-examples
The examples show both scattered and consecutive repeats, plus compound shapes. Each string has eight digits. The maximum count has to be five, so a string with six copies does not qualify.
| Serial | Result |
|---|---|
| 77777299 | Five 7s, a 2 and two 9s |
| 70717277 | Five 7s scattered |
| 77777012 | Five consecutive 7s |
| 55555111 | Five of a Kind and binary |
| 55555122 | Five of a Kind and trinary |
| 52555525 | Five 5s and bookends |
| 55555512 | Six 5s, not Five of a Kind |
How rare is Five of a Kind?
Choose the repeated digit in 10 ways, choose its five positions in 56 ways, then fill the remaining three positions from the other nine digits in 9^3 ways. That gives 408,240 strings among 100,000,000, or about 1 in 245. The detector rule is common compared with the larger repeated-digit counts.
How much is a Five of a Kind note worth?
The verified sold-price source has no publishable Five of a Kind bands. Most ordinary examples should be treated as face-value notes unless comparable completed sales or a stronger combination support a premium. The cells remain blank because the source does not provide an honest range.
For condition and sales context, read the fancy serial number value guide and check replacement status with the star note lookup.
| Condition | Recorded range | Sample |
|---|---|---|
| Circulated | ||
| Very Fine | ||
| Uncirculated |
What raises or lowers the value?
- A star note may have a collector audience, but no Five of a Kind star-note band is recorded.
- A strong overlap such as binary, trinary, radar, bookends or repeater can make the string more distinctive.
- Some buyers may prefer particular repeated digits, but the site's evidence does not rank digit choices.
- A higher denomination changes the face value; condition and eye appeal affect collector demand.
Should you keep, sell, or spend a five of a kind note?
At about 1 in 245, this is a common pattern and most plain examples carry little or no premium. Keep one if you enjoy it, or set it aside when it has a strong overlap, star note status or unusually crisp condition. A worn ordinary example is usually reasonable to spend. Grading is unlikely to make sense without stronger sale evidence.
How to check your serial
Count the most frequent digit in the eight-digit serial. Exactly five matches this pattern. Then check whether the string is also binary, trinary, bookends, radar, repeater or a star note.
Run it through the fancy serial number checker and compare with Six of a Kind guide, Seven of a Kind guide and Solid guide.
Check your serial on Banknote Expert
Enter all eight digits, including leading zeros, to see Five of a Kind and any overlapping patterns.
Open the fancy serial checkerFive of a Kind serial number FAQs
What is a five of a kind serial number?
An eight-digit serial with one digit appearing exactly five times.
Is five of a kind worth anything?
It is common at about 1 in 245, and most plain examples have little or no premium. Strong overlaps and exceptional condition can justify further research, but no verified price band is available here.
What is the difference between five of a kind and six of a kind?
Five of a Kind has a maximum digit count of five; Six of a Kind has six copies and, under this site's rule, two different leftover digits.
Does it matter which digit repeats?
Digit appeal can differ among collectors, but the available sold data does not provide a verified ranking or price by repeated digit.
Should I keep or spend a five of a kind note?
Keep it if you enjoy it or it has a stronger overlap, star note status or strong condition. Most worn, plain examples are reasonable to spend.