3 is a factor of 21, so ignore it. 21 factors to [3 7] 35 factors to [5 7] common factor [7] LCM = 21 * 35 / 7 = 105 ■
7 is a factor of 35.
15/35 ? factor out a 5 5*3/5*7 now, as 5 appears in both numerator and denominator as a factor it can be eliminated 3/7 --------simplified
35- 1, 5, 3545- 1, 3, 5, 15, 45the greatest common factor between them is 5* * * * *Why the selective factorisation? 7 divides 35, 9 divides 45?The factors of 45 are 1, 3, 5, 9, 14, and 45.The factors of 35 are 1, 5, 7, and 35.The greatest common factor of 35 and 45 is 5.
The greatest common factor of 51 , 35 = 1
3 is not a factor of 35
No.
The greatest common factor of 35 and 63 is 7.
35 is a multiple of 7 7 and 1 are a factor pair of 7. 3 and 5 are a factor pair of 15
3 is a factor of 21, so ignore it. 21 factors to [3 7] 35 factors to [5 7] common factor [7] LCM = 21 * 35 / 7 = 105 ■
first you are gonna multiply 1*35 2*35 3*35 4*35
3/35 is already in lowest terms (there is no common factor other than 1 between 3 and 35).
The greatest common factor (GCF) is 1.
Factors of a number are numbers that divide into the number evenly and are always smaller than the number. 35 is larger than 3, so it cannot be a factor of 3.
7 is a factor of 35.
15 = 5*3 35 = 5*7 GCF: 5 (and the only comon factor)
The GCF is 1.