Since 115 ends in five, it will divide by '5'. Hence '5' is one of the factors.
5)115 = 23
Hence '23' is the other factor. Since '23' is a Prime number, there are no other factors for 115 , but 5, and 23. except '1' & 115'.
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1, 2, 5, 10, 23, 46, 115, 230.
gcf for these numbers 345 253 and 115 is 23.
115 130 135
23 times (115 ÷ 5 = 23).
115 = 5 x 23