The GCF of 420, 735, and 945 is 105.The prime factorization of 420 is 2x2x3x5x7The prime factorization of 735 is 3x5x7x7The prime factorization of 945 is 3x3x3x5x7(1) List the prime factors of each number.(2) Multiply those factors all numbers in the set have in common. If there are no common prime factors, the GCF is 1. (Those factors are the ones in bold type.)As you can see the GCF is 3x5x7 or 105
360, 420 and 480 each have 24 factors.
The common factors of 24 and 34 are: 1 and 2
The common factors of 3 and 24 are 1 and 3.
The common factors of 21 and 24 are: 1 and 3
360, 420 and 480 all have 24 factors.
The common factors of 420 and 880 are: 1, 2, 4, 5, 10, 20.
The common factors of 288 and 420 are 1, 2, 3, 4, 6 and 12.
The prime factorization of 420 is: 2 × 2 × 3 × 5 × 7
3
1 and 3
The GCF of 420, 735, and 945 is 105.The prime factorization of 420 is 2x2x3x5x7The prime factorization of 735 is 3x5x7x7The prime factorization of 945 is 3x3x3x5x7(1) List the prime factors of each number.(2) Multiply those factors all numbers in the set have in common. If there are no common prime factors, the GCF is 1. (Those factors are the ones in bold type.)As you can see the GCF is 3x5x7 or 105
The common factors are: 1, 2, 4, 7, 14, 28.
420
The GCF is 12.
Common factors of 420, 735, and 945 are: 1, 3, 5, 7, 15, 21, 35, and 105.
360, 420 and 480 each have 24 factors.