4.1 * 4 + 7.6 = 24
3,116 = 1 x 3116, 2 x 1558, 4 x 779, 19 x 164, 38 x 82, 41 x 76.
1 x 76, 2 x 38, 4 x 19, 19 x 4, 38 x 2, 76 x 1 = 76
one plus ten multiplied by four =1 + 10 x 4 = 1 + 40 = 41
1 x 76, 2 x 38, 4 x 19, 19 x 4, 38 x 2, 76 x 1 = 76
4 x 19 = 76
The factors of 76 are 1, 2, 4, 19, 38 and 76. The factor pairs of 76 are 1 x 76, 2 x 38, and 4 x 19.
x equals 25
1, 2, 4, 19, 38, 76 (1 x 76, 2 x 38, 4 x 19)
76 x 25 x 4 = 7600
1 x 76, 2 x 38, 4 x 19, 19 x 4, 38 x 2, 76 x 1
-15
No. it's not a prime number when x = 40, 41, 81,82 ...