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What is the greatest common factor of 42, 126, and 210 ? F. 2 G. 6 H. 14 J. 21 K. 42

What is the greatest common factor of 42, 126, and 210 ? F. 2 G. 6 H. 14 J. 21 K. 42
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4 votes
What is the greatest common factor of 42, 126, and 210 ?

F. 2
G. 6
H. 14
J. 21
K. 42

asked
User Iamktothed
by
8.1k points

1 Answer

3 votes
prime factors of 42: 2x7x3
prime factors of 126: 2x3x3x7
prime factors of 210: 7x3x5x2
now we multiply all the factors that they all have in common: 2x3x7 which is 42. So the highest common factor is 42
answered
User Pansora Abhay
by
7.6k points
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