However, this doesn't apply for numbers where formula_8, since if we interpret this function as an infinite sum, the sum does not converge. Instead, it diverges. This means that instead of nearing a specific value, it will get infinitely large. Riemann used analytic continuation, so that he could give a value to all numbers except 1. formula_9 represents the harmonic series, which diverges, meaning that the sum does not near any specific number. 