If log 2= 0.030103, the number of digits in 264 is

If log 2= 0.030103, the number of digits in 264 is :

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #659