The number 1444 is notable for being a perfect square, as it equals (38^2). Meanwhile, 1666 is often associated with historical events, such as the Great Fire of London that occurred in that year. Additionally, both numbers can be broken down into their prime factors, with 1444 being (2^2 \times 19^2) and 1666 being (2 \times 3 \times 277).
John Woodville was born in 1444.
Stephen III Báthory died in 1444.
Johan Evertsen died in 1666.
John Westbrooke died in 1666.
James Shirley died in 1666.
Smallest: MCDXLIV = 1444 (CM would have given a smaller start but you cannot then place D). Largest: MDCLXVI = 1666
1666 = MDCLXVI
Multiples of 1666, like 1666, 3332, 4998 and so on.
1444 and 1521
1666 = MDCLXVI
2,085,136
The prime factors of 1666 are 2, 7, 7 and 17. From this you can see that 49, the square of 7, is a factor of 1666. 49 is the only possible square factor.
1444 Torr=1444 MM Hg
Use factor trees. 828 414,2 207,2,2 69,3,2,2 23,3,3,2,2 1666 833,2 119,7,2 17,7,7,2
38 38X38=1444
1444 would be: MCDXLIV
fraction of 1666 = 1666/1