The greatest common factor is the highest number that divides exactly into two or more numbers.'
429: 1, 3, 11, 13, 33, 39, 143, 429
715: 1, 5, 11, 13, 55, 65, 143, 715.
The GCF of 429 and 715 is 143.
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715
The LCM is: 715
143
The 8 factors of 715 are 1, 5, 11, 13, 55, 65, 143, and 715. The prime factors of 715 are 5, 11, and 13.
The factors of 2,145 are: 1 3 5 11 13 15 33 39 55 65 143 165 195 429 715 2,145. The prime factors are: 3 x 5 x 11 x 13