1,900 is a composite number. No even number greater than 2 is prime.
It is composite.
2 x 2 x 5 x 5 x 19 = 1900
The US does not have a Prime Minister, so there was no US Prime Minister in 1900.
1,900 is a Composite Number. (all whole numbers ending in zero are composite)
1,900 = 22 x 52 x 191
Why don't you start looking for obvious factors. For every 0 in a number, you have a factor of 10 - which has the prime factors 2 and 5.
As a product of its prime factors: 2*2*5*5*19 = 1900 or as 22*52*19 = 1900
19
It is: 22*52*19 = 1900
It is: 22*52*19 = 1900
1900 = 22 x 52 x 191
22 x 52 x 19 = 1900