Page 139 New factors received from March 1, 2021 to today 6575 2,1115+ c253 3161463426821723295710466272881720239483479402846095145474459949190169764413700807058659632361. p160 NFS@Home snfs 6576 7, 443- c282 246485575893980371628538160283793076128413053123407170715757721. p219 Wagstaff ECMNET 6577 3, 667- c275 25359506465081394537400918368811516993503730623239065990152596258171619851. p202 NFS@Home snfs 6578 2,1084+ c318 1615504491521016767576038002257684567731553108092683255522094320022452740081. p243 NFS@Home snfs 6579 3, 668+ c277 3454616644651017335948326625930427200787582461128044623836409208675435266694341431777. p193 NFS@Home snfs 6580 6, 409+ c311 48346323912861131161255155625593962467386036932375624634503689. p249 NFS@Home snfs