In John 2, how many years did the Jews say their temple had taken to build?

Answer: Forty-six

When Jesus said he would raise the temple in three days, the Jews replied, "This temple took forty-six years to build."

“Jesus answered, “Destroy this temple, and in three days I will raise it up again.” “This temple took forty-six years to build,” the Jews replied, “and You are going to raise it up in three days?””— John 2:19-20 (BSB)