Quick Answer

42 × 420

42 × 420 = 17640. To multiply 42 by 420, add 42 to itself 420 times, or use the standard multiplication algorithm. 42 × 420 = 17640.

17640

42 × 420 = 17640

How to Calculate 42 × 420

To multiply 42 by 420, add 42 to itself 420 times, or use the standard multiplication algorithm. 42 × 420 = 17640.

Expression42 × 420

Answer17640

42 × 420 = 17640

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