there is magic of mathematics
13^2 = 169
(1+3)^2 = 1+6+9
31^2 = 961
(3+1)^2 = 9+6+1
153 = 1³ + 5³ + 3³
370 = 3³ + 7³ + 0³
371 = 3³ + 7³ + 1³
407 = 4³ + 0³ + 7³
54748=5^5 + 4^5 + 7^5 + 4^5 + 8^5
92727=9^5 + 2^5 + 7^5 + 2^5 + 7^5
93084=9^5 + 3^5 + 0^5 + 8^5 + 4^5
286794 x 5103
= 1463509782
= 479682 x 3051
12 X 42 = 21 X 24
14 X 82 = 41 X 28
23 X 64 = 32 X 46
26 X 31 = 62 X 13
34 X 86 = 43 X 68
36 X 42 = 63 X 24
1/2
= 1/2" + 1/3" + 1/4" + 1/6" + 1/7" + 1/9" + 1/12" +
1/15" + 1/28" + 1/30" + 1/35" + 1/36" + 1/45"