It is: 1
3 x 3 x 11 = 99 3 x 5 x 11 = 165 3 x 11 = 33, the GCF
That appears to be a little backwards. It makes more sense to find the GCF of 56 and 154 using prime factorization. 2 x 2 x 2 x 7 = 56 2 x 7 x 11 = 154 2 x 7 = 14, the GCF
2 x 43 = 86 2 x 7 x 11 = 154 The GCF is 2.
The GCF of 20 and 66 is 2. The prime factorization of 20 is 2*2*2 The prime factorization of 66 is 2*3*11 Their only common factor is 2, so it is their GCF.
1, 111, 19The GCF is 1.
2 x 7 = 14 2 x 11 = 22 The GCF is 2.
3 x 5 = 155 x 11 = 55Select the common factor.The GCF is 5.
3 x 11 = 333 x 5 x 5 = 75The GCF is 3.
11 is a prime number.
3 x 3 x 11 = 99 3 x 5 x 11 = 165 3 x 11 = 33, the GCF
That appears to be a little backwards. It makes more sense to find the GCF of 56 and 154 using prime factorization. 2 x 2 x 2 x 7 = 56 2 x 7 x 11 = 154 2 x 7 = 14, the GCF
3 x 3 x 11 = 99 7 x 11 = 77 The GCF is 11.
It's not really necessary since 11 is a factor of 22 and automatically the GCF, but if you insist...112 x 11Select the common factor.The GCF is 11.
3 x 3 x 11 = 99
The GCF of 143, 195, and 260 is 13 The prime factorization of 143 is 11*13. The prime factorization of 195 is 13*15. The prime factorization of 260 is 2*2*5*13 So the GCF is 13.
The GCF of 138, 253, and 805 is 23.The prime factorization of 138 is 2*3*23The prime factorization of 253 is 11*23The prime factorization of 805 is 5*7*23Thus, the GCF of 138, 253, and 805 is 23.
Prime factorization of 275 = 52 x 11 Prime factorization of 1000 = 23 x 53 gcf(275, 1000) = 52 = 25.