Best Answer

1 and 2

2 and 3

5 and 6

9 and 10

if you subtract them.

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Q: What are the factors of 90 which equals -1?

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2 + 3 = 5

The two factors of 90 with a difference of 1 are 9 and 10.

90^1

4 x 90

The factors of 89 are: 1, 89 The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90.The factors of 115 are: 1, 5, 23, 115.The common factors are: 1, 5

The factors of 25 are: 1, 5, 25The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

90

The factors of 75 are 1, 3, 5, 15, 25, 75 The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

The common factors are: 1, 2

1

The factors of 76 are: 1, 2, 4, 19, 38, 76 The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90