Parshwanath Bhagwan’s age (lifespan) is traditionally said to be 100 years. This is the common figure cited in Jain sources, including akhir narrative of his nirvana after 70 years of preaching, where he attains moksha at the age of 100. Digambar and Shwetambar traditions both preserve this 100-year lifespan as part of his life-story. You can read more here