number pi with 140 decimal places, mathematics and pi day concept

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Size: 4241px × 5000px
Photo credit: © Marek Uliasz / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: 14, 314, abstract, background, constant, day, handwriting, march, math, mathematics, number, numbers, pi, row, series, vector, vectors