2019

Post date: May 8, 2019 6:50:32 PM

• Semi-prime because it is the product of 2 prime factors: 3 * 673
• You can concatenate the two prime factors in both orders and create primes: 3673 and 6733
• Smallest number that can be written as the sum of the squares of 3 primes in six different ways.
• New Year's Eve 2019 will be a "prime day" if you write the date as 20191231
• 2019 = 1^4 + 2^4 + 3^4 + 5^4 + 6^4
• Video showing a number of different ways to calculate 2019