1 digit x 2 digit
1 digit x 3 digit
1 digit x 4 digit
2 digit x 2 digit (friendly numbers)
2 digit x 2 digit (no friendly numbers)
100

2 x 64

128

100

3 x 458

1,374

100

3 x 1234

3,702

100

20 x 41

820

100

45 x 45

2,025

200

8 x 45

360

200

7 x 482

3, 374

200

5 x 7852

39,260

200

90 x 45

4,050

200

85 x 25

2,380

300

8 x 89 

712

300

6 x 281

1,686

300

7 x 2846

19,922

300

70 x 63

4,410

300

24 x 36

864

400

4 x 73

292

400

8 x 328

2,624

400
4 x 1258

5,032

400

23 x 70

1,610

400

87 x 46

4,002

500

9 x 73

657

500

6 x 741

4,446

500

9 x 1025

9,225

500

45 x 80

3,600

500

36 x 86 

3,096

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