There are infinitely many pairs of numbers, and triplets, and 4-tuples etc.
A pair that is easy to remember is 1x19.
A multiplication problem that equals 19 is 1 multiplied by 19, expressed as 1 x 19 = 19. Since 19 is a prime number, the only whole number factors of 19 are 1 and 19 itself. Another way to express it is 19 x 1 = 19.
1 x 76, 2 x 38, 4 x 19.
1 x 95, 5 x 19.
3x5+4=19
19 x 1
As a product of its prime factors: 19*19*19 = 6859
95 divided by 5 = 19 (95/5=19)
1 x 209, 11 x 19.
As a product of its prime factors: 3*19 = 57
1 x 76, 2 x 38, 4 x 19.
1 x 95, 5 x 19.
19/15 is the equivalent of 38/30
3x5+4=19
As a product of its prime factors: 2*19 = 38
Four over nineteen equals 21%. This is known as math.
Nineteenth is the correct spelling.
19 x 1