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Now such a number can be factored in roughly twice the time it took Lenstra and Manasse to factor a 100-digit number.
Although a supercomputer could have done the job more quickly the use of microcomputers shows that large numbers can be factored reasonably quickly using inexpensive equipment.
A year ago, the Sandia team set a record for the largest "hard" number evern factored by a general-purpose factoring method (SN: 1/14/84, p 20;3/17/84, p.