For example, they could enter “123123. ”

For instance, if they entered 123123, then they would divide it by 11 and get 11,193.

For example, if their last result was 11,193, then they would divide it by 13 and get 861.

For instance, if their last result was 861, and the original number was 123, they would divide 861 by 123 to get the number 7.

You can switch this trick up by having them divide the result by 7 in step 3, and announce that the result is 13 in the final step.

For instance, if your volunteer picks the number “7893,” they would type “78937893” into the calculator.

For example, 78,937,893 divided by 137 is 576,189.

For instance, after dividing 78,937,893 by 137 to get 576,189, the volunteer would divide 576,189 by 7,893.

Don’t reveal the math behind the trick! A good magician knows how to keep their secrets.

This is a super easy math trick that is easy to figure out at the end, but it’s still fun to put on a show!

Keep pretending you are reading the person’s mind while they perform the multiplication.

If you have an audience, don’t let them see the result on the screen in order to create a more dramatic effect.

For example, if they chose “1,” then the calculator will show “111111111. ”