It is a string of three positive integers.
19 + (2-4) + 3 = 19 + 2 - 4 + 3 = 21 - 4 +3 = 17 +3 = 20
Formally, 3*19 - 2*19 = 19*(3 - 2) = 19*1 = 19
912 = 2 * 2 * 2 * 2 * 3 * 19 = 24 * 3 * 19
2 x 2 x 3 x 3 x 19
It is by: 3*(4+2)+1 = 19
Prime factors are 2, 2, 3, 19 Others are combinations of the primes, i.e. 2 x 2 = 4 2 x 3 = 6 2 x 2 x 3 = 12 2 x 19 = 38 3 x 19 = 57 2 x 2 x 19 = 76 2 x 3 x 19 = 114
19-2x=13 19 -13 ------ 6 6/2=3 19-(2)(3)=13 x=3
19 x 3 x 2 x 2 = 228
There are 19 because 19/8 = 2 and 3/8
It is: 2*2*2*2*3*5*19 = 4560 or as 24*3*5*19 = 4560
2/3 x 9/19 = (2 x 9)/(3 x 19) = 18/57 = 6/19.
(21)3 -(19)3 (21)2+(19)2+(399)