public void GetAllTruncatablePrimes_WhenCalled_ReturnsExpectedNumberOfPrimes()
{
// Arrange
var expectedNumberOfTruncatablePrimes = 11;
// Act
var result = PrimeHelper.GetAllTruncatablePrimes();
// Result
result.Should().HaveCount(expectedNumberOfTruncatablePrimes);
}