Report Radix as 10, since the type is base 10

PreciseNumber.Test/PreciseNumberTests.cs

@@ -905,7 +905,8 @@ public void TestDivisionWithSmallNumbers()
 	[TestMethod]
 	public void TestRadix()
 	{
-		Assert.AreEqual(2, PreciseNumber.Radix);
+		// The type stores significand × 10^exponent, so like decimal it is base 10.
+		Assert.AreEqual(10, PreciseNumber.Radix);
 	}
 
 	[TestMethod]

PreciseNumber/PreciseNumber.cs

@@ -434,10 +434,10 @@
 	/// </summary>
 	internal static CultureInfo InvariantCulture { get; } = CultureInfo.InvariantCulture;
 
-	private const int BinaryRadix = 2;
+	private const int DecimalRadix = 10;
 
 	/// <inheritdoc/>
-	public static int Radix => BinaryRadix;
+	public static int Radix => DecimalRadix;
 
 	/// <inheritdoc/>
 	public static PreciseNumber AdditiveIdentity => Zero;
@@ -697,7 +697,7 @@
 	/// A fixed precision such as <c>E15</c> rounds values that need 17 digits, which turns
 	/// <see cref="double.MaxValue"/> into a number that converts back to infinity.
 	/// </remarks>
 	internal static string GetStringFormatForFloatType<TFloat>()
 		where TFloat : INumber<TFloat>
 		=> "R";
 
@@ -1111,7 +1111,7 @@
 	public static PreciseNumber MinMagnitudeNumber(PreciseNumber x, PreciseNumber y) => MinMagnitude(x, y);
 
 	/// <inheritdoc/>
 	public static PreciseNumber Parse(ReadOnlySpan<char> s, NumberStyles style, IFormatProvider? provider)
 	{
 		if (s.IsEmpty)
 		{