The greatest common factor of 2940 and 3150 is 210. Source: http://www.mathwarehouse.com/arithmetic/numbers/GCF/greatest-common-factor-calculator.php
The GCF is 42.
The LCM is: 17,640
The lowest common factor is: 1
420, 840, 1260, 1680, 2100, 2520, 2940 +420 . . .
Count them: 210, 420, 630, 840, 1050, 1260, 1470, 1680, 1890, 2100, 2310, 2520, 2730, 2940
420, 840, 1260, 1680, 2100, 2520, 2940, 3360, 3780.
Well, isn't that just a happy little math problem we have here! To find the Greatest Common Factor (GCF) of 2940 and 3150, we can start by finding the factors of each number. The GCF is the largest number that divides evenly into both 2940 and 3150. Let's take a moment to appreciate the beauty of numbers coming together in harmony to help us find the answer.
A factor is a divisor - a number that will evenly divide into another number. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 462 are 1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, and 462. The factors of 2940 are 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, and 2940. The common factors are 1, 2, 3, 6, 7, 14, 21, and 42. This would mean that the greatest common factor is 42.
The total number of multiples is infinite. Here are the first 10: 420, 840, 1260, 1680, 2100, 2520, 2940, 3360, 3780, 4200 . . .
2940
9 + 2940 = 2949.