15 is the product of distinct Fermat primes, 3 and 5; hence, a regular pentadecagon is constructible with a compass and unmarked straightedge, and cos ⁡ π 15 {\displaystyle \cos …

Other articles where the number fifteen is discussed: number symbolism: 15: As the product of two sacred numbers (3 × 5), 15 naturally has religious significance. In ancient Nineveh the …

According to Scripture, water was allowed to rise 15 cubits (roughly 21.8 to 25.5 feet or 6.7 to 7.8 meters) above the highest peaks on the earth. And the waters prevailed exceedingly upon the …

According to the definition mentioned above, we can say "No, 15 is not a prime number." Now let us take a look at the detailed solution of why is 15 a prime number or a composite number?

Acts 15 The Council at Jerusalem 1 Certain people came down from Judea to Antioch and were teaching the believers: “Unless you are circumcised, according to the custom taught by …

15 Then some Pharisees and teachers of the law came to Jesus from Jerusalem and asked, 2 “Why do your disciples break the tradition of the elders? They don’t wash their hands before …

* [15:15] Matthew specifies Peter as the questioner, unlike Mk 7:17. Given his tendency to present the disciples as more understanding than in his Marcan source, it is noteworthy that here he …