If x = 2 ¹³ * 3 ¹² * 5 ⁷, the numeral x will end in __________ zeroes

Given:

x = 2¹³ × 3¹² ×5⁷

= 2^{6 + 7} × 3¹² × 5⁷

= 2⁶ × 2⁷ × 3¹² × 5⁷

= 2⁶ × 3¹² × (2 × 5)⁷

= 2⁶ × 3¹² × 10⁷

Hence the numeral x will end with 7 zeroes.