It is: 3*13 = 39
-39
4 and two fifths multiplied by three is 13 and 1 fifth.
39 is the product when the two prime numbers 3 and 13 are multiplied.
3 and 13 13 being a prime number.
2x3x6=36
1, 5, 13
3 and 13
-13
13 multiplied by 54 is 702
529 multiplied by 13 is 6,877
18 multiplied by 13 is 234