378 or 2*189 or 2*3*89. 89 is prime.
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378 ÷ 7 = 54
3*3*6*7 = 378
378 divided by 9 = 42
The 16 factors of 378 are: 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378 Take your pick of any 2 of them.
The sum of the numbers 1 through 27 is 378.