Well, honey, let me break it down for you. The common factors of 15, 35, and 45 are 1 and 5. So, there you have it. Simple as that.
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The common factors of 45 and 90 are 1,3,5
The only factors common to all three numbers are... 1 & 5
The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105The factors of 135 are: 1, 3, 5, 9, 15, 27, 45, 135The factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225The common factors are: 1, 3, 5, 15The Greatest Common Factor (GCF) is: 15
The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15. You can also determine the greatest common factor from the prime factors. The prime factors of 45 are 3, 3, and 5. The prime factors of 60 are 2, 2, 3, and 5. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.
1, 3, 5, and 15