28
28
2
14
It is: 14
It is: 20
It is: 35
The GCF is 10.
The HCF is: 7
The GCF/HCF of 140 and 350 is 70.
2 x 2 x 5 x 7 = 140 5 x 9 x 9 = 405 HCF is 5 LCM is 11,340
HCF(140, 490) = 70 So 70 and any factor of 70 will do.
No. The prime factors of 140 are 2,2,5 and 7 The prime factors of 210 are 2,3,5 and 7 The common prime factors are 2,5 and 7 Thus the HCF is 2x5x7, or 70.