59
This number is a prime.
Just showing those entries submitted by 'Ward': (Click here to show all)
59 is the smallest prime you can express by using the digits 123456789 in order, and the operators + and * between any digits. For example, 1*2*3*4+5+6+7+8+9 = 59. Can you find another way to express it with the same rules? [Ward]
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