One divided by seven creates one of mathematics' most fascinating patterns. Discover why 0.142857 is called the "magic number."
1/7 creates a repeating pattern exactly 6 digits long: 0.142857142857...
Multiply by 2, 3, 4, 5, or 6 and the digits stay the same, just starting from different positions!
See step-by-step division for 1/7 and other fractions!
Try Fraction Calculator →Because multiplying 142857 by 2, 3, 4, 5, or 6 gives the same digits in a different order: 142857 × 2 = 285714, 142857 × 3 = 428571, etc.
1/7 has the longest possible repetend for single-digit denominators - 6 digits. No other fraction with a single-digit denominator has a longer repeating pattern!
Yes! The pattern continues infinitely: 0.142857142857142857... You can verify this with our Fraction Calculator.