Previous Prime

Description

The command previous_prime(a) returns the prime previous to $a$.

Sage Cell

Code

a = 10^21
previous_prime(a)

Options

None

Tags

Primary Tags: number theory

Secondary Tags: primes

Related Cells

Attribute

Permalink: http://abstract.ups.edu/aata/integers-sage.html

Author: R. Beezer

Date: 15 Jul 2017 09:00

Submitted by: Tom Judson

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