b = ( 3⁷⁴ + 3⁷³ + 3⁷² ) ÷ 13
b = ( 3² + 3 + 1 ) • 3⁷² ÷ 13
b = ( 9 + 3 + 1 ) • 3⁷² ÷ 13
b = 13 • 3⁷² ÷ 13
b = 1 • 3⁷²
b = 3⁷²