17 is prime. Its only factors are 1 and 17.
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To express 68 as a product of 2 factors, we need to find all pairs of numbers that multiply to 68. The pairs are: 1 and 68, 2 and 34, 4 and 17, and 17 and 4. These pairs give us the following expressions: 1 x 68, 2 x 34, 4 x 17, and 17 x 4.
I prefer to show my divisors as factor pairs, to make it less likely to forget any. 1 and 68 2 and 34 4 and 17 That is all of it.
The factor pairs of 765 are: 1 × 765 3 × 255 5 × 153 9 × 85 15 × 51 17 × 45
The number that goes into 153, 170, and 187 is 17. This is because 153 ÷ 17 = 9, 170 ÷ 17 = 10, and 187 ÷ 17 = 11, resulting in whole number quotients for each division. Therefore, 17 is the common factor that divides evenly into all three numbers.
17