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To get the Greates Common Factor (GCF) of 20123 and 9990 we need to factor each value first and then we choose all the copies of factors and multiply them:

20123: | 20123 | ||||||

9990: | 2 | 3 | 3 | 3 | 5 | 37 | |

GCF: |

**The Greates Common Factor (GCF) is: 1**

| Greatest Common Factor (GCF) of 194 and 211 | | Greatest Common Factor (GCF) of 321 and 168 | | Greatest Common Factor (GCF) of 30303 and 1000000 | | Greatest Common Factor (GCF) of 551 and 80 | | Greatest Common Factor (GCF) of 1827 and 60 | | Greatest Common Factor (GCF) of 2295 and 900 | | Greatest Common Factor (GCF) of 800 and 475 | | Greatest Common Factor (GCF) of 57375 and 100000 | | Greatest Common Factor (GCF) of 210200 and 15 | | Greatest Common Factor (GCF) of 7536 and 360 | | Greatest Common Factor (GCF) of 365 and 1936 | | Greatest Common Factor (GCF) of 295 and 638 | | Greatest Common Factor (GCF) of 1004 and 10 | | Greatest Common Factor (GCF) of 4215 and 3289 | | Greatest Common Factor (GCF) of 10000 and 50 | | Greatest Common Factor (GCF) of 53 and 855 | | Greatest Common Factor (GCF) of 494 and 231 | | Greatest Common Factor (GCF) of 16 and 3166 | | Greatest Common Factor (GCF) of 110 and 588 | | Greatest Common Factor (GCF) of 14641 and 14161 | | Greatest Common Factor (GCF) of 121 and 1119 | | Greatest Common Factor (GCF) of 509 and 102 | | Greatest Common Factor (GCF) of 463 and 29 | | Greatest Common Factor (GCF) of 999 and 564 | | Greatest Common Factor (GCF) of 0.125 and 0.152 | | Greatest Common Factor (GCF) of 25 and 4347 | | Greatest Common Factor (GCF) of 125 and 529 | | Greatest Common Factor (GCF) of 175 and 30429 | | Greatest Common Factor (GCF) of 250 and 1058 | | Greatest Common Factor (GCF) of 1570 and 6384 | | Greatest Common Factor (GCF) of 311 and 4620 | | Greatest Common Factor (GCF) of 51 and 1615 |

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